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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2111. Отображено 101.
21-04-2017 дата публикации

INTERNAL COMBUSTION ENGINE CONTROLLER

Номер: KR1020170043448A
Автор: GEHRET JOSEPH, ROY JEAN, WEN JIAN
Принадлежит:

The present invention proposes a system and method for controlling an electrical inverter system for operating an internal combustion engine and powering a load, including: a step of controlling an operation of a spark-ignited internal combustion engine prime mover used in generation of electrical power by way of a generator. A microprocessor (e.g., DSP) controlled circuit taking an engine speed input from an engine speed signal is used to control the operation of the internal combustion engine prime mover so as to be preferably operated substantially at a wide open throttle. COPYRIGHT KIPO 2017 (30) Engine speed processor (40) Input speed processor (50) Engine metering circuit (52) Data bus (54) ADDR bus (60) DSP controller (62) CAN bus (70) Host communication interface ...

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Номер записи: 1
01-03-2012 дата публикации

Controller for and method of controlling internal combustion engine

Номер: US20120053819A1
Автор: Hiromichi Yasuda, Yusuke Suzuki
Принадлежит: Toyota Motor Corp

Heat generation amount PV κ (θ) is calculated with the use of cylinder pressure P(θ), detected by a cylinder pressure sensor, cylinder, volume V(θ), and specific heat ratio κ (steps 100 to 102 ). A crank angle θ fix , at which the value of PV κ (θ) peaks, is determined as a start crank angle, at which an adiabatic process after combustion starts (step 104 ). A correction coefficient K fix is calculated based on the variation of the value of PV κ (θ) after θ fix (step 106 ). An actual heat generation amount PV κ (θ) is calculated with the use of the correction coefficient K fix (step 110 ). A cooling loss coefficient K cool that determines a correlation between the cooling loss and crank angles may be calculated based on a water temperature and an engine speed and the actual heat generation amount PV κ fix (θ) may be made to reflect the cooling loss coefficient K cool .

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Номер записи: 2
15-03-2012 дата публикации

Method and circuit for processing a signal supplied by a piezoelectric sensor, and pressure-measuring device for piston engine

Номер: US20120060595A1
Автор: Alain Ramond, Marcel Guwang
Принадлежит: Hidria Aet Druzba za Proizvodnjo Vzignih Sistemov in Elektronike doo

A method and a circuit for processing a signal supplied by a piezoelectric sensor ( 10 ) indicating the cylinder pressure of a piston engine such as a heat engine. Undesirable variations in the value of the signal supplied by the sensor and corresponding to plateaux in the pressure are compensated by a closed-loop servo control which is suitable for setting an output signal to a predetermined constant reference value, independently of undesirable variations in the signal from the sensor ( 10 ). The value of the output signal is sampled, and at each sampling moment, if the absolute value of the variation in the output signal is less than a comparison value, the servo control is kept active. A circuit for processing and a pressure-measuring device including a circuit of this kind is also described.

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Номер записи: 3
28-02-2013 дата публикации

Air-fuel ratio control system for internal combustion engine

Номер: US20130047969A1
Автор: Atsuhiro Miyauchi, Michinori TANI, Seiji Watanabe, Takashi Yanagiura, Takeshi Aoki, Tooru Sekiguchi
Принадлежит: Honda Motor Co Ltd

An air-fuel ratio control system for an internal combustion engine has a perturbation control which oscillates the air-fuel ratio with a first frequency. A first difference signal is generated indicative of a difference between a present value and a first past value from an air-fuel ratio sensor detected at a timing of a first specific period which is set to reduce a specific frequency component corresponding to a specific frequency different from the first frequency. A first frequency component is extracted. A second difference signal is generated indicative of a difference between a present value and a second past value detected at a timing of a second specific period which is set to reduce the first frequency component. The specific frequency component is extracted. A failure of the control system is determined by a relationship between intensities of the first frequency component and the specific frequency component.

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Номер записи: 4
07-03-2013 дата публикации

Imbalance re-synchronization control systems and methods

Номер: US20130060449A1
Автор: Andrew P. Bagnasco, Ian J. Mac Ewen, Scott Jeffrey, Steven Ward Majors
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Fueling to one cylinder of an engine is selectively adjusted based on a correction associated with the cylinder. An instability module increments a counter value when the correction is equal to one of a first predetermined value and a second predetermined value and was previously equal to the other one of the first and second predetermined values. The instability module selectively generates a first indicator based on the counter value. A variance of imbalance values can be determined based on samples of an exhaust gas oxygen signal. Two variances are determined: one variance with adjustment based on the correction, one without adjustment based on the correction. A variance checking module selectively generates a second indicator based on the first and second variances. A re-synchronization module re-synchronizes the imbalance values with the cylinders, respectively, in response to generation of the first indicator and/or the second indicator.

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Номер записи: 5
21-03-2013 дата публикации

Systems and methods for diagnosing an engine

Номер: US20130073127A1
Автор: Ajith Kumar, Arijit Banerjee, Paul Flynn, Rupam Mukherjee, Somakumar Ramachandrapanicker
Принадлежит: General Electric Co

Methods and systems are provided for an engine. A condition of the engine may be diagnosed based on a combustion torque profile of the engine estimated using signals from a generator operationally connected to the engine and/or other signals associated with the engine. Different types of degradation may be distinguished based on discerning characteristics within the estimated combustion torque profile data. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.

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Номер записи: 6
21-03-2013 дата публикации

System and method for diagnosing an engine

Номер: US20130073174A1
Автор: Bret Dwayne Worden, Matthew Malone, Milan Karunaratne, Paul Lloyd Flynn
Принадлежит: General Electric Co

Methods and systems are provided for an engine including a crankcase. A condition of the engine may be diagnosed based on frequency content of crankcase pressure. Different types of degradation may be distinguished based on a frequency content of multiple frequencies of the crankcase pressure. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.

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Номер записи: 7
06-06-2013 дата публикации

Method for operating an internal combustion engine

Номер: US20130144508A1
Автор: Ignazio Dentici, Michele BASTIANELLI
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods and apparatus for operating an internal combustion engine are provided. The engine has an engine block defining a cylinder accommodating a reciprocating piston coupled to rotate a crankshaft, a fuel injector for injecting fuel inside the cylinder, and a crank position sensor positioned proximal to the crankshaft. A method includes commanding the fuel injector to perform a test fuel injection with a predetermined energizing time and using the crank position sensor to determine a crankshaft acceleration signal during the test fuel injection. The crankshaft acceleration signal is filtered and a value of an amplitude of a fundamental frequency component of the filtered crankshaft acceleration signal is determined. A correction factor of the predetermined energizing time is determined based on a difference between the determined value of the amplitude and a preset value thereof. The correction factor is used to correct an energizing time of subsequent fuel injections.

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Номер записи: 8
27-06-2013 дата публикации

Method and Device For Operating A Cold Start Emission Control Of An Internal Combustion Engine

Номер: US20130166186A1
Автор: Alexandra Fuchsbauer, Guido Porten, Uwe Mueller
Принадлежит: ROBERT BOSCH GMBH

A method for operating a cold start emission control of an internal combustion engine, a combustion chamber pressure in at least one cylinder of the internal combustion engine being initially detected, at least one characteristic variable for a combustion process of the internal combustion engine being determined based on the detected combustion chamber pressure, a setpoint value being established for the characteristic variable, a deviation of the characteristic variable from the setpoint value being determined, and an error entry being generated as a function of the determined deviation.

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Номер записи: 9
17-10-2013 дата публикации

Sensor device for detecting a flow property of a fluid medium

Номер: US20130269419A1
Автор: Andreas Kaufmann, Andreas Roehler, Frank Ullrich, Hans Beyrich, Kurt Etherington, Michael Rittmann, Norbert Schneider, Uwe Konzelmann, Wolfgang Dann
Принадлежит: ROBERT BOSCH GMBH

A sensor device for detecting at least one flow property of a fluid medium. The sensor device includes at least one sensor housing, in which at least one electronic module having at least one flow sensor for detecting the flow property is accommodated. The electronic module is at least partially accommodated in at least one electronic space. Furthermore, at least one pressure sensor and at least one humidity sensor are accommodated inside the sensor housing. The pressure sensor and also the humidity sensor are at least partially accommodated in at least one sensor space, which is designed separately from the electronic space.

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Номер записи: 10
14-11-2013 дата публикации

Pipe with vibrational analytics

Номер: US20130298664A1
Автор: II William J. Gillette
Принадлежит: Logimesh IP LLC

A system is disclosed that includes a pipe and a device for measuring and storing vibration data related to the use of the pipe and its remaining lifespan. The data can be collected wirelessly using a radio frequency device.

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Номер записи: 11
14-11-2013 дата публикации

Remote monitoring unit with various sensors

Номер: US20130300574A1
Автор: William J. Gillette II
Принадлежит: Logimesh IP LLC

A sensor device can comprise at least one sensor operatively coupled to a controller, wherein the controller is configured to receive a measured input from the at least one sensor; and a wireless communication device coupled to the controller. Further, the wireless communication device can be configured to communicate with a coordinator. In various embodiments, the at least one sensor can include a volume sensor, a flow meter sensor, a total dissolved solids sensor, an infrared thermal monitor, an air quality sensor, or any combination thereof.

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Номер записи: 12
19-12-2013 дата публикации

Control apparatus for internal combustion engine, method of controlling internal combustion engine, and computer-readable storage medium

Номер: US20130338906A1
Автор: Satoshi FURUHASHI, Shusuke Akazaki, Yuji Yamamoto
Принадлежит: Honda Motor Co Ltd

A control apparatus for an internal combustion engine includes a cylinder internal pressure sensor, a fuel injection parameter calculator, a driving device, and a sensor output signal processing device. The sensor output signal processing device is configured to set a noise reduction period in accordance with an opening time and an opening start time of a fuel injection valve and is configured to reduce, during the noise reduction period, noise that is included in a cylinder internal pressure sensor output signal and that is caused by opening of the fuel injection valve.

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Номер записи: 13
09-01-2014 дата публикации

Method for controlling engine noise including combustion noise of internal combustion engine

Номер: US20140012487A1
Автор: InSoo Jung
Принадлежит: Hyundai Motor Co

A method for controlling noise including combustion noise of an internal combustion engine includes (a) setting an engine noise target value and a cylinder pressure level target value, (b) determining a first comparison value by subtracting a measured cylinder pressure level from the cylinder pressure level, (c) receiving an engine noise parameter stored in an ECU, (d) determining the engine noise using the engine noise measured at step (c), (e) determining a direct correlation coefficient, an indirect correlation coefficient, mechanical noise, and flow noise through a proportional integral controller, (f) performing correction, (g) controlling the engine based on the value decided at step (f), (h) measuring a combustion pressure after step (g), (i) converting the combustion pressure into a cylinder pressure level within a predetermined crank angle after step (g), and (j) determining direct combustion noise of the engine noise after step (h).

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Номер записи: 14
16-01-2014 дата публикации

Diagnosis Method And Device For Operating An Internal Combustion Engine

Номер: US20140014081A1
Автор: Reza Azadeh
Принадлежит: Continental Automotive GmbH

A method is disclosed for performing an individual cylinder diagnosis with respect to pollutant emissions within a predefined operating range of an internal combustion engine, meeting at least one predefined condition. During the performing of the individual cylinder diagnosis, a forced activation, by means of which a predefined air/fuel ratio to be set is activated, is prescribed in a manner synchronous to the cylinder segment. The excitation is carried out such that each individual cylinder is subjected during subsequent working cycles to a mixture that is either richer or leaner in comparison to the predefined air/fuel ratio to be set due to the forced excitation. Depending on the forcibly activated air/fuel ratio to be set, the corresponding injection valves are actuated.

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Номер записи: 15
13-02-2014 дата публикации

Knock control apparatus for an internal combustion engine

Номер: US20140041439A1
Автор: Yuhei Matsushima
Принадлежит: Mitsubishi Electric Corp

A knock control apparatus for an internal combustion engine can remove regularly generated noise vibration in a simple and appropriate manner. The apparatus includes a knock sensor, a crank angle sensor, a vibration waveform detection unit that detects a vibration waveform of a knock natural frequency component, a vibration waveform average value calculation unit that calculates a vibration waveform average value corresponding to a noise vibration waveform by filtering the vibration waveform over a plurality of ignition cycles, a noise vibration waveform removal unit that removes the noise vibration waveform by subtracting the vibration waveform average value from the vibration waveform, a knock determination threshold value calculation unit that calculates a threshold value based on a peak value of the vibration waveform after removal of the noise vibration waveform, and a knock determination unit that determines whether a knock has occurred, by comparing the peak value with the threshold value.

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Номер записи: 16
03-01-2019 дата публикации

INJECTOR DELIVERY MEASUREMENT WITH LEAKAGE CORRECTION

Номер: US20190003414A1
Автор: MOLLAR Andrea, NIEDDU Stefano
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for operating a combustion engine is provided. A fuel injector is operated to perform a fuel injection, a sequence of pressure signals of the fuel rail pressure during the fuel injection is sampled and filtered and a total pressure difference between a first sample after a top dead center of the fuel pump and before the fuel injection has started and a chosen second sample after the injection and before a next pumping stroke is determined. A linear pressure slope at the second sample and a leakage pressure difference between the first sample and the second sample based on the linear pressure slope is calculated, leading to calculating an injection pressure difference as the difference between total pressure difference and the leakage pressure difference. With this, a value of a fuel quantity injected as a function of the injection pressure difference can be determined, while leakages are compensated. 1. A method of operating an internal combustion engine having a fuel rail in fluid communication with a fuel pump and a fuel injector , the method comprising:operating the fuel injector to perform a fuel injection;sampling a sequence of pressure signals representative of a fuel pressure within the fuel rail during the fuel injection in a crankshaft angular domain;filtering the sequence of pressure signals to reduce signal noise;acquiring a first sample of the filtered pressure signals after a top dead center of the fuel pump and before the fuel injection has started in an injection interval;acquiring a second sample of the filtered pressure signals after the injection and before a next pumping stroke;calculating a total pressure difference between the first sample and the second sample;determining a linear pressure slope at least at the second sample and calculating a leakage pressure difference between the first sample and the second sample based on the linear pressure slope;calculating an injection pressure difference as the difference between total pressure ...

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Номер записи: 17
27-01-2022 дата публикации

SYSTEM AND METHOD FOR PREDICTING VALIDITY OF NOx SENSOR OUTPUT

Номер: US20220025806A1
Автор: Dean Pennala, Frank M. Korpics, Jim Bromham, Justin Trzeciak
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems for operating an engine that includes a controller and a NOx sensor are described. In one example, output of the NOx sensor is selectively made available to software modules within the controller when an offset in NOx sensor output is not expected. If the offset in NOx sensor output is expected, the NOx sensor output may not be made available to the software modules.

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Номер записи: 18
14-01-2016 дата публикации

Processing system and method for calculating pressure decreases due to injection events in a high-pressure fuel system

Номер: US20160010584A1
Автор: David Lee BALDWIN, David M. Carey, Donald J. Benson, Paul V. MOONJELLY
Принадлежит: Cummins Inc

A system and method is provided to analyze an intermediate pressure signal portion between an end of an injection event signal portion and a start of a subsequent injection event signal portion. The analysis is simplified by identifying a plurality of single cycle windows and calculating a single value, such as a mean or a median, for each of the windows. An intermediate portion single value is determined by averaging the single values for each of the windows. The intermediate portion single value may then be used to identify pumping events or leakage errors that occur during the intermediate pressure signal portion that affect further analysis of the intermediate pressure signal portion.

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Номер записи: 19
19-01-2017 дата публикации

APPARATUS AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

Номер: US20170016409A1
Автор: ITO Yukinobu, MIZUNO Yukimi
Принадлежит:

A heat-ray type of airflow meter has a signal processor for converting a detected intake air quantity into a frequency signal. An engine controller has a conversion table for converting the frequency signal into an air quantity. The signal processor and the conversion table have features such that the frequency increases as the magnitude of a positive air quantity increases, and the frequency decreases as an absolute value of a negative air quantity increases. In the conversion table, a prescribed positive air quantity value is assigned a dummy output for frequencies lower than a prescribed threshold value. Under normal circumstances, frequencies lower than a minimum value are not used. The frequency decreases to near 0 Hz when there is a disconnection or a short circuit, the dummy output is therefore output, and an injection quantity equal to or greater than a misfire limit is ensured. 1. An internal combustion engine control device for an internal combustion engine , comprising:an airflow meter configured to detect an intake air quantity in an intake passage of the internal combustion engine; andan engine controller programmed to control a fuel injection amount of an internal combustion engine according to the intake air quantity that is detected by the airflow meter,the airflow meter being further configured to output a positive air quantity that flows in a forward direction and a negative air quantity that flows in an opposite direction as a frequency signal that increases as a magnitude of the positive air quantity increases, and that decreases as an absolute value of the negative air quantity increases, andthe engine controller including a conversion table for converting the frequency signal to air quantity in which the positive air quantity is assigned a dummy output in a frequency region that is lower than a predetermined frequency that corresponds to the negative air quantity.2. The internal combustion engine control device according to claim 1 , whereinthe ...

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Номер записи: 20
26-01-2017 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20170022911A1
Автор: KITAGAWA Eiki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

Feedback control is executed based on a measured CA10 and a measured CA50 that are calculated based on measured data for MFB. The measured data is corrected in accordance with a pattern of a waveform of measured data for a heat release amount, and measured data for MFB is calculated. A correlation index value showing a degree of correlation between the calculated measured data for MFB and reference data corresponding thereto is calculated. If the correlation index value is less than a determination value, control is performed to prohibit reflection in the aforementioned feedback control of each of the measured CA10 and the measured CA50 which are measured in the combustion cycle in which the relevant correlation index value is calculated. 1. A control device for an internal combustion engine , comprising:an in-cylinder pressure sensor that is configured to detect an in-cylinder pressure;a crank angle sensor that is configured to detect a crank angle; anda control unit that is configured to:calculate measured data for mass fraction burned that is synchronized with a crank angle, based on an in-cylinder pressure that is detected by the in-cylinder pressure sensor and a crank angle that is detected by the crank angle sensor;execute engine control in which a measured value at a specified fraction combustion point that is a crank angle at a time that mass fraction burned becomes a specified fraction is calculated based on measured data for mass fraction burned and an actuator of the internal combustion engine is controlled based on the measured value at the specified fraction combustion point;calculate a correlation index value showing a degree of correlation between the measured data for mass fraction burned and reference data for mass fraction burned which is based on operating conditions of the internal combustion engine; andprior to calculate the correlation index value, correct the measured data for mass fraction burned in a crank angle period that is after a ...

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Номер записи: 21
25-01-2018 дата публикации

INTAKE AIR FLOW RATE MEASURING DEVICE

Номер: US20180023496A1
Автор: ITAKURA Keisuke
Принадлежит: Denso Corporation

The present disclosure provides an intake air flow rate measuring device. The intake air flow rate measuring device includes a flange, a casing, a flow rate sensor, a humidity sensing element, an element terminal, and a humidity terminal. The humidity terminal is spaced away from the element terminal. A portion of the casing between the element terminal and the humidity terminal is defined as a suppressing portion, and a cross-section of the suppressing portion is defined as a suppressing portion cross-section. An end portion of the casing close to the flange is defined as a base portion, and a cross-section of the base portion is defined as a base portion cross-section. The suppressing portion cross-section is set to be smaller than the base portion cross-section. 1. An intake air flow rate measuring device that is inserted into an attachment hole of an intake air duct introducing an intake air into an engine , the intake air flow rate measuring device measuring a flow rate of the intake air flowing through the intake air duct , the intake air flow rate measuring device comprising:a flange that is disposed outside of the intake air duct to cover the attachment hole;a casing that extends in both the attachment hole and the intake air duct;a flow rate sensor that is disposed in the casing to measure a flow rate of the intake air flowing through the intake air duct;a humidity sensing element that is disposed in the casing to measure a humidity of the intake air flowing through the intake air duct;an element terminal that is positioned only inside the intake air duct and is electrically connected to the humidity sensing element; anda humidity terminal that passes through the flange, whereinthe humidity terminal is positioned spaced away from the element terminal,an electric connector is disposed between the humidity terminal and the element terminal to electrically connect the humidity terminal to the element terminal,heat is less likely to transfer through the ...

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Номер записи: 22
24-02-2022 дата публикации

COMMUNICATION INTERFACE BETWEEN AN EMISSION CONTROL SYSTEM AND INTERNAL COMBUSTION ENGINE

Номер: US20220056867A1
Автор: Beckman Michael Manford
Принадлежит:

An interface circuit assembly for use with an electronic control unit and oxygen sensor of an internal combustion engine. The assembly includes an input port coupled to receive a signal from the oxygen sensor and a processing unit coupled with the input port. The processing unit increases the signal to an output voltage as a function of hydrogen being provided to the internal combustion engine. An output port is coupled with the processing unit and provides the output voltage to the electronic control unit. 1. A method of operating an interface circuit assembly of an internal combustion engine , comprising:receiving an input signal from an oxygen sensor using a first connector;using a first diode to direct the input signal to a second connector;transforming the input signal to an output voltage by adding voltage to the input signal as a function of hydrogen and gasoline being provided to the internal combustion engine;providing a second connector configured to send an output signal to an electronic control unit; anddirecting the output voltage using a second diode to produce the output signal to the electronic control unit that is indicative of the input signal and the output voltage.2. The method of claim 1 , further comprising using a gated metal-oxide semiconductor field emission transistor to control added voltage to the signal.3. The method of claim 1 , wherein the output voltage includes a pulse comprising a selected duration at a selected voltage level.4. The method of claim 3 , wherein the selected voltage level is in a range from approximately 0.08 volts to 0.90 volts.5. The method of claim 1 , wherein connection between the oxygen sensor and the electronic control unit is not bypassed during operation.6. The method of claim 1 , further comprising using a plurality of resistors to transform the input signal.7. The method of claim 1 , further comprising using a plurality of capacitors to transform the input signal.8. The method of claim 1 , further ...

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Номер записи: 23
06-02-2020 дата публикации

Method for the Combined Identification of Phase Differences of the Inlet Valve Stroke and of the Outlet Valve Stroke

Номер: US20200040830A1
Автор: Braun Tobias
Принадлежит: CPT Group GmbH

Various embodiments include a method for identifying valve stroke phase differences during operation comprising: measuring dynamic pressure oscillations in the air intake tract; generating a corresponding signal; acquiring a crankshaft phase angle; acquiring the phase position and the amplitude of a signal frequency of the oscillations based on the pressure oscillation using discrete Fourier transformation; acquiring a line of an equal phase position and of equal amplitude of the signal frequency reflecting the inlet and the outlet stroke phase difference using reference lines; acquiring a common intersection point of a line of equal phase position and a line of equal amplitude by projection into a common plane; and determining the stroke phase differences and from the common intersection point. 1. A method for the combined identification of an inlet valve stroke phase difference and of an outlet valve stroke phase difference of a cylinder of a series-production internal combustion engine during operation , the method comprising:measuring dynamic pressure oscillations, assignable to the cylinder, of the intake air in the air intake tract of the respective series-production internal combustion engine during operation;generating a corresponding pressure oscillation signal based on the measured oscillation;acquiring a crankshaft phase angle signal corresponding to the measured oscillations;acquiring the phase position and the amplitude of a respectively selected signal frequency of the measured pressure oscillations in relation to the crankshaft phase angle signal based on the pressure oscillation signal, using discrete Fourier transformation;acquiring, on the basis of the acquired phase position and amplitude of the respective selected signal frequency, in each case a line of an equal phase position and of equal amplitude of the respectively same signal frequency, the line reflecting the inlet valve stroke phase difference and the outlet valve stroke phase difference, ...

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Номер записи: 24
18-02-2021 дата публикации

INTERNAL COMBUSTION ENGINE CYLINDER AIR-FUEL RATIO IMBALANCE DETECTION AND CONTROLS

Номер: US20210047975A1
Автор: Brahma Avra, Yoon Yongsoon
Принадлежит:

A system for detecting and controlling air-fuel ratio imbalance conditions between cylinders of an internal combustion engine having a plurality of cylinders is disclosed. 2. The method of claim 1 , wherein the one or more enable conditions include: a speed of the internal combustion engine being greater than a speed threshold; a mass air flow to the internal combustion engine being greater than a mass air flow threshold claim 1 , an oxygen sensor heater being ON claim 1 , intake manifold pressure being less than a threshold claim 1 , and dithering being ACTIVE.3. The method of claim 1 , wherein the monitoring parameter is a mean value of the absolute difference between the first and second fundamental frequencies.4. The method of claim 1 , wherein the first fundamental frequency is an inverse of a falling edge of the lambda control feedback correction input; andwherein the second fundamental frequency is an inverse of a period of center crossing from high to low of the sensed output lambda.5. The method of claim 1 , further comprising controlling a fueling amount to the internal combustion engine to reduce the AFR imbalance in response to the AFR imbalance fault.6. (canceled)7. (canceled)8. (canceled)9. A method for diagnosing an air-fuel ratio (AFR) imbalance condition during operation of an internal combustion engine claim 1 , comprising:determining if one or more monitoring conditions are met to enable detection of an AFR imbalance condition;initializing and executing a Kalman Filter or an RLS estimator to estimate time-varying auto-regressive (TV AR) model coefficients;determining a power spectral density (PSD) at cycle frequency from identified (TV AR) model coefficients;determining a monitoring parameter from a mean value of the time-varying PSD at cycle frequency over a monitoring period; andcomparing the monitoring parameter to a pre-defined threshold and in response to the monitoring parameter being greater than the threshold declare a fault.10. The method ...

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Номер записи: 25
13-02-2020 дата публикации

METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Номер: US20200049081A1
Автор: Fahrion Heiko, Gauerhof Lydia, Oppelland Magnus
Принадлежит:

A method for ascertaining whether a combustion process is being carried out in a cylinder of an internal combustion engine, it being decided whether or not the combustion process is present as a function of a relative angle between a characteristic signature of a variable characterizing a time curve of a state variable of the internal combustion engine and a specifiable crankshaft angle. 114-. (canceled)15. A method for ascertaining whether a combustion process is being carried out in a cylinder of an internal combustion engine , the method comprising:deciding whether the combustion process is present as a function of a relative angle between a characteristic signature of a variable characterizing a time curve of an energy of the internal combustion engine and a specifiable crankshaft angle;wherein the energy includes a kinetic energy given by the rotational movement of the internal combustion engine.16. The method of claim 15 , wherein the characteristic signature is a characteristic value of a time curve of a Fourier component claim 15 , the energy.17. The method of claim 15 , wherein it is decided that the combustion process has taken place if the phase shift is within a specifiable crankshaft angular range around the specifiable crankshaft angle.18. The method of claim 17 , wherein the crankshaft angular range is situated symmetrically about the specifiable crankshaft angle.19. The method of claim 15 , wherein the kinetic energy including a rotational energy of the crankshaft and a kinetic energy of an up-and-down movement of pistons of the internal combustion engine.20. The method of claim 15 , wherein the energy also including a volume work of the gas filling in the cylinder.21. The method of claim 15 , wherein the specifiable crankshaft angle is a top dead center of the cylinder.22. The method of claim 15 , wherein the specifiable crankshaft angle being a value in an interval having an initial value and an end value claim 15 , the initial value being one of ...

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Номер записи: 26
10-03-2022 дата публикации

SYNCHRONISATION OF AN INTERNAL COMBUSTION ENGINE

Номер: US20220074360A1
Автор: Leroy Yannick, MARCONATO Benjamin, Rocher Jacques
Принадлежит:

Sensor delivering detection information in the form of a variation of a current, including a sensitive portion adapted to detecting the passage of a mobile target, an electronic module able to control and shape signals coming from the sensitive portion, an embedded intelligence module adapted, inter alia, to receive information from an electronic computer and to process and generate information intended for the electronic computer, characterized in that the sensor includes a random-number generation module able to generate a random number. 1. A current source sensor delivering detection information in the form of a variation of a current , comprising a sensitive portion adapted to detecting the passage of a mobile target , an electronic module able to control and shape signals coming from the sensitive portion , an embedded intelligence module adapted , inter alia , to receive information from an electronic computer and to process and generate information intended for said electronic computer , wherein the sensor comprises a random-number generation module able to generate a random number , and wherein the embedded intelligence module is adapted to modify a first low level of an interrupt signal into a second low level and to modify a first high level of an interrupt signal into a second high level.2. The current source sensor as claimed in claim 1 , wherein the random-number generation module is adapted to generating a random number intended for the embedded intelligence module.3. The current source sensor as claimed in claim 2 , wherein the random number generated by the random-number generation module is dependent on a serial number of said current source sensor.4. The current source sensor as claimed in claim 3 , wherein the embedded intelligence module is adapted to count down from the random number generated by the random-number generation module.5. The sensor as claimed in claim 4 , wherein the embedded intelligence module is adapted to count down at a ...

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Номер записи: 27
21-02-2019 дата публикации

Intoxicated Vehicle Driver Accident Reduction System

Номер: US20190054923A1
Автор: Jones Daniel
Принадлежит:

A sobriety ignition interlock system including an engine control device and a method for managing available vehicle engine power using the sobriety ignition interlock system. The engine control device includes an engine control processor (ECP) that is electronically connected in between an engine control unit (ECU), an engine sensor assembly, and a sobriety processor. The sobriety processor determines a sobriety level of a vehicle driver and sends a corresponding sobriety signal to the ECP. The ECP intercepts an engine signal transmitted from the engine sensor assembly to the ECU and manipulates the engine signal according to the sobriety signal, in order to manage the available power of the vehicle engine. 1. A method of managing available vehicle engine power , the method comprises the steps of:providing a vehicle engine, an engine control processor (ECP), a sobriety processor, an engine control unit (ECU), and an engine sensor assembly;calculating, by the sobriety processor, a sobriety level for a vehicle driver;comparing, by the sobriety processor, the sobriety level to a sobriety threshold in order to produce a sobriety signal;sending, by the sobriety processor, the sobriety signal to the ECP;intercepting, by the ECP, an engine signal transmitted from the engine sensor assembly to the ECU; andmanipulating, by the ECP, the engine signal according to the sobriety signal.2. The method of managing available vehicle engine power claim 1 , the method as claimed in further comprises the step of:terminating, by the ECP, the engine signal, if the sobriety level is above the sobriety threshold.3. The method of managing available vehicle engine power claim 1 , the method as claimed in further comprises the step of:sending, by the ECP, the engine signal to the ECU, if the sobriety level is below the sobriety threshold.4. The method of managing available vehicle engine power claim 1 , the method as claimed in further comprises the steps of:transforming, by the ECP, the ...

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Номер записи: 28
01-03-2018 дата публикации

Semiconductor device and fuel injection device

Номер: US20180058363A1
Автор: Takashi Otsuji
Принадлежит: Renesas Electronics Corp

A semiconductor device has a peak value storage register, a threshold value storage register, a peak determination circuit, and an end timing determination circuit. The peak determination circuit determines whether or not to update a value stored in the peak value storage register. Further, the peak determination circuit ends an operation if the end timing determination circuit determines that an end timing has arrived. The peak value storage register updates a storage value if the peak determination circuit determines to perform updating. The end timing determination circuit determines that the end timing of the operation of the peak determination circuit has arrived if the value of an input signal becomes smaller than a value obtained by decreasing or increasing the value stored in the peak value storage register by a value corresponding to a threshold value stored in the threshold value storage register.

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Номер записи: 29
27-02-2020 дата публикации

Monitoring Deviations Occurring In The Valve Drive Of An Internal Combustion Engine, And Electronic Engine Control Units For Executing Such Methods

Номер: US20200063674A1
Автор: Braun Tobias, Delp Matthias, Maurer Frank
Принадлежит: CPT Group GmbH

Various embodiments include a method for detecting deviations occurring in the valve drive of an internal combustion engine comprising: measuring dynamic pressure oscillations of intake air in an air intake tract of respective internal combustion engine during operation; calculating an inlet valve stroke phase difference and/or an outlet valve stroke phase difference based on the measured dynamic pressure oscillation; calculating a valve stroke phase deviation value with respect to a valve stroke phase reference value based on the calculated phase difference; and calculating a first valve drive deviation value based on the valve stroke phase deviation value. 1. A method for detecting deviations occurring in the valve drive of an internal combustion engine , the method comprising:measuring dynamic pressure oscillations of intake air in an air intake tract of respective internal combustion engine during operation;calculating an inlet valve stroke phase difference and/or an outlet valve stroke phase difference based on the measured dynamic pressure oscillation;calculating a valve stroke phase deviation value with respect to a valve stroke phase reference value based on the calculated phase difference; andcalculating a first valve drive deviation value based on the valve stroke phase deviation value.2. The method as claimed in claim 1 , further comprising:measuring an inlet camshaft angle difference and/or an outlet camshaft angle difference using a crankshaft position sensor and an inlet camshaft position sensor and/or outlet camshaft position sensor during operation;calculating a second valve drive deviation value based on the measured angle difference;comparing the first and the second valve drive deviation value with one another to perform a reciprocal plausibility check; andcalculating a valve drive deviation comparison value.3. The method as claimed in claim 2 , wherein the first and/or the second valve drive deviation value is identified as plausible only if the ...

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Номер записи: 30
27-02-2020 дата публикации

DEEP REINFORCEMENT LEARNING FOR AIR HANDLING CONTROL

Номер: US20200063676A1
Автор: Kothandaraman Govindarajan, Narang Vikas, Neema Kartavya, Tamaskar Shashank
Принадлежит:

An engine system includes an air handling control unit which controls a plurality of air handling actuators responsible for maintaining flow of air and exhaust gas within the engine system. The engine system has a plurality of sensors whose sensor signals at least partially define a current state of the engine system. The air handling control unit includes a controller which controls the air handling actuators of the engine system as well as a processing unit coupled to the sensors and the controller. The processing unit includes an agent which learns a policy function that is trained to process the current state, determines a control signal to send to the controller by using the policy function after receiving the current state as an input, and outputs the control signal to the controller. Then, the agent receives a next state and a reward value from the processing unit and updates the policy function using a policy evaluation algorithm and a policy improvement algorithm based on the received reward value. Subsequently, the controller controls the air handling actuators in response to receiving the control signal. In one aspect of the embodiment, the control signal is a command signal for the air handling actuators. 1. An air handling control for an engine system , comprising:a plurality of sensors coupled to the engine system, wherein sensor signals from the plurality of sensors at least partially define current states;a plurality of air handling actuators;a controller operable to control the air handling actuators; anda processing unit coupled to the sensors and the controller, the processing unit comprising an agent operative to interact with the engine system to:learn a policy function trained to process the current state, determine a control signal to send to the controller by using the policy function after receiving the current state as an input, output the control signal to the controller, receive a next state and a reward value from the processing unit, ...

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Номер записи: 31
27-02-2020 дата публикации

DIAGNOSIS DEVICE AND DIAGNOSIS METHOD FOR INTERNAL COMBUSTION ENGINE, AND CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

Номер: US20200063678A1
Автор: ASAI Go, BECCIANI Michele, BELLISSIMA Alessandro, FERRARA Giovanni, Ferrari Lorenzo, STIACCINI Isacco, VICHI Giovanni
Принадлежит: Yanmar Co., Ltd.

A diagnosis device for a multi-cylinder internal combustion engine having an exhaust turbocharger, the device configured to diagnose a fuel combustion state in each one of cylinders in the internal combustion engine. The diagnosis device includes: a rotational speed detector configured to output a signal corresponding to a rotational speed of the exhaust turbocharger or a signal correlated to fluctuation in the rotational speed of the exhaust turbocharger, and a fuel combustion state diagnosis unit configured to diagnose unevenness in the fuel combustion states of the cylinders through a frequency analysis involving a fast Fourier transformation of a frequency characteristic of a signal output from the rotational speed detector. 1. A diagnosis device for a multi-cylinder internal combustion engine having one or more exhaust turbochargers , the device configured to diagnose a fuel combustion state in each one of cylinders in the internal combustion engine , the diagnosis device comprising:a rotational speed detector configured to output a signal corresponding to a rotational speed of at least one of the one or more exhaust turbochargers or a signal correlated to fluctuation in the rotational speed of at least one of the one or more exhaust turbochargers; anda fuel combustion state diagnosis unit configured to diagnose unevenness in fuel combustion states of the cylinders through a frequency analysis involving a fast Fourier transformation of a frequency characteristic of a signal output from the rotational speed detector.2. The diagnosis device for the internal combustion engine according to claim 1 , wherein the fuel combustion state diagnosis unit is configured to:determine an operating point corresponding to a complex plane through the frequency analysis involving the fast Fourier transformation, andbased on an angle of a vector ranging from an origin of the complex plane to the operating point with respect to a coordinate axis of the complex plane and a length of ...

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Номер записи: 32
27-02-2020 дата публикации

DEEP REINFORCEMENT LEARNING FOR AIR HANDLING AND FUEL SYSTEM REFERENCING

Номер: US20200063681A1
Автор: Kothandaraman Govindarajan, Narang Vikas, Neema Kartavya, Tamaskar Shashank
Принадлежит:

An engine system includes an air handling and fuel system whose states are managed by a reference managing unit. The engine system has a plurality of sensors whose sensor signals at least partially define a current state of the engine system. The reference managing unit includes a controller which controls the air handling and fuel system of the engine system as well as a processing unit coupled to the sensors and the controller. The processing unit includes an agent which learns a policy function that is trained to process the current state, determines air handling references and fuel system references by using the policy function after receiving the current state as an input, and outputs the air handling references and fuel system references to the controller. Then, the agent receives a next state and a reward value from the processing unit and updates the policy function using a policy evaluation algorithm and a policy improvement algorithm based on the received reward value. Subsequently, the controller controls the air handling and fuel system of the engine in response to receiving the air handling references and the fuel system references. 1. A reference managing unit for air handling and fuel system of an engine system , comprising:a plurality of sensors coupled to the engine system, wherein sensor signals from the plurality of sensors at least partially define a current state;a controller operable to control the air handling and fuel system of the engine system; anda processing unit coupled to the sensors and the controller, the processing unit comprising an agent operative to:learn a policy function trained to process the current state, determine air handling references and fuel system references by using the policy function after receiving the current state as an input, output the air handling references and fuel system references to the controller, receive a next state and a reward value from the processing unit, and update the policy function using a ...

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Номер записи: 33
09-03-2017 дата публикации

APPARATUS FOR CONTROLLING ENGINE AND METHOD FOR CONTROLLING ENGINE

Номер: US20170067406A1
Автор: JUNG In Soo
Принадлежит:

A method of calculating a nitrogen oxide (NOx) mass reduced from a lean NOx trap (LNT) during regeneration includes calculating a C3H6 mass flow used to reduce the NOx among a C3H6 mass flow flowing into the LNT of an exhaust purification device, calculating a NH3 mass flow used to reduce the NOx among a NH3 mass flow flowing into the LNT, calculating a reduced NOx mass flow based on the C3H6 mass flow used to reduce the NOx and the NH3 mass flow used to reduce the NOx, and calculating the reduced NOx mass by integrating the reduced NOx mass flow over a regeneration period. 1. An apparatus for controlling an engine comprising:a combustion pressure sensor that measures an internal combustion pressure of a combustion chamber of the engine;an injector that injects fuel into the combustion chamber; anda controller that converts the combustion pressure measured by the combustion pressure sensor into a combustion noise index (CNI), and controls main injection timing, injection pressure and pilot fuel amount injected by the injector using the combustion noise index.2. The apparatus of claim 1 , wherein the controller calculates the CNI by converting the combustion pressure sensor through FFT (Fast Fourier Transformation).3. The apparatus of claim 1 , wherein when a difference between the measured combustion noise index and a target combustion noise index is greater than a predetermined value claim 1 , the controller determines that abnormal combustion is generated and controls main injection timing claim 1 , injection pressure and pilot fuel amount.4. The apparatus of claim 3 , wherein the target combustion noise index is determined by an experiment according to one or more variables selected from the group consisting of engine speed claim 3 , fuel amount injected into the combustion chamber claim 3 , gear shift stage claim 3 , external temperature and coolant temperature.5. The apparatus of claim 3 , wherein when the difference between the measured combustion noise index ...

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Номер записи: 34
05-03-2020 дата публикации

Control device for internal combustion engine and control method for internal combustion engine

Номер: US20200072151A1
Автор: Jinwu GAO, Kota Sata, Shigeyuki Urano, Tielong SHEN
Принадлежит: Toyota Motor Corp

A control device for an internal combustion engine includes at least one processor and a memory configured to store a program. The at least one processor is configured to execute, by executing the program, a process of deciding a manipulated variable of the internal combustion engine from a control input value, in accordance with a predetermined conversion rule, a process of calculating a sample value of the controlled variable, a process of calculating a reference expectation value of the controlled variable from the control input value, a process of performing a hypothesis test for a null hypothesis that an average value of a predetermined number of recent sample values of sample values of the controlled variable is equal to the reference expectation value, and a process of modifying the conversion rule by an adaptive control when the null hypothesis is rejected.

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Номер записи: 35
12-06-2014 дата публикации

Fuel injection control apparatus for internal combustion engine

Номер: US20140158092A1
Автор: Kohsuke Kanda, Masayuki Saruwatari, Yoshihiro Sukegawa, Yoshitatsu Nakamura
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A fuel injection control apparatus for fuel injection at optimum timing in correspondence with level of gas flow velocity in an intake port upon intake stroke injection. A fuel injection valve is controlled so as to set a large majority (more than half) of an injection period to inject fuel during an intake stroke in respective cylinders within a period where intake port gas pressure is increased. Upon intake stroke injection, the fuel is injected at optimum timing in correspondence with the direction and the level of gas flow velocity in the intake port. Accordingly, the status of air-fuel mixture in a combustion chamber is excellent. It is possible to improve fuel consumption and to reduce exhaust emission.

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Номер записи: 36
14-03-2019 дата публикации

INTERNAL COMBUSTION ENGINE

Номер: US20190078530A1
Автор: BURGMAIR Raphael, IMHOF Dino, MEDY Satria
Принадлежит:

A Dual-fuel combustion engine, possessing: 1. A Dual-fuel combustion engine , comprising:a control device;at least one combustion chamber;at least one gas delivery device for delivering a gaseous fuel to at least one combustion chamber; andat least one injector that can be regulated via the control device using an actuator triggering signal, for an injection of liquid fuel into the at least one combustion chamber; wherein the at least one injector comprises an output—opening for a liquid fuel closable by a needle; wherein the control device, via the actuator triggering signal, —controls opening of the needle in a ballistic region of the needle in a pilot operating mode of the combustion engine; and wherein an algorithm is stored in the control device, which receives as an input value at least the actuator triggering signal, and calculates a mass of liquid fuel transferred through the output opening of the at least one injector via an injector model, compares the mass calculated using the injector model with a required target value of the mass of liquid fuel, and either leaves it unchanged or corrects the actuator triggering signal, depending on a result of the comparison.2. The combustion engine of claim 1 , wherein the algorithm comprises a preliminary control claim 1 , which calculates a preliminary control signal for the actuator triggering signal for an injection duration claim 1 , based on the required target value of the mass of liquid fuel.3. The combustion engine of claim 1 , wherein at least one sensor is operable to measure at least one measurement value of the at least one injector claim 1 , for which purpose the sensor is or can be brought into signal connection with the control device.4. The combustion engine of claim 1 , wherein the algorithm possesses a feedback loop which claim 1 , after the actuator triggering signal is calculated by a preliminary control for injection duration and an at least one measurement value claim 1 , calculates the mass of ...

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Номер записи: 37
25-03-2021 дата публикации

Fourier Diagnosis of a Charge Cycle Behavior of an Internal Combustion Engine

Номер: US20210087994A1
Автор: GRASREINER Sebastian, HARTL Florian, KUKLINSKI Christian
Принадлежит:

A diagnostic tool diagnoses a charge cycle behavior of an internal combustion engine with a plurality of cylinders. The diagnostic tool ascertains a rotational speed profile of the internal combustion engine. From the determined rotational speed curve, the diagnostic tool ascertains a peculiarity of at least one charge exchange characteristic variable by performing a Fourier transform. The diagnostic tool assigns a deviation type to the rotational speed profile as a function of the ascertained peculiarity of the charge exchange characteristic variable. 110.-. (canceled)11. A method for the diagnosis of charge exchange behavior of an internal combustion engine with multiple cylinders , comprising:ascertaining a rotational speed profile of the internal combustion engine;ascertaining a peculiarity of at least one charge exchange characteristic variable using a Fourier transformation from the ascertained rotational speed profile; andassigning a deviation type to the rotational speed profile as a function of the ascertained peculiarity of the charge exchange characteristic variable.12. The method according to claim 11 , wherein the step of assigning the deviation type comprises:comparing the ascertained peculiarity of the charge exchange characteristic variable with predetermined peculiarities of the charge exchange characteristic variable which are assigned to different deviation types; andassigning a deviation type to the rotational speed profile in accordance with the result of the comparison.13. The method according to claim 12 , wherein ascertaining the result of the comparison comprises:calculating of a difference between the ascertained peculiarity and the predetermined peculiarity; andassigning the deviation type to the rotational speed profile if the difference exceeds a predetermined threshold value.14. The method according to claim 11 , whereinthe charge exchange characteristic variable is an ascertained amplitude of a particular engine order and is used for ...

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Номер записи: 38
29-03-2018 дата публикации

Control device

Номер: US20180087462A1
Автор: Kazuteru Iwamoto, Makoto WAKIMURA, Minoru Hotta, Naoki Nagata, Yoshihiko Nonogaki
Принадлежит: Denso Corp, Yamaha Motor Co Ltd

A control device for a rotating element rotated by a four-stroke engine has a high degree of freedom in the choice of an apparatus to which the control device is applicable. The control device includes a rotation speed acquisition unit configured to obtain a rotation speed of the rotating element rotated by the four-stroke engine, and an undulation detection unit configured to, based on the rotation speed obtained by the rotation speed acquisition unit, detect a periodic undulation contained in a rotation fluctuation of the four-stroke engine, the periodic undulation having an angular period longer than a crank angle corresponding to four strokes.

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Номер записи: 39
21-03-2019 дата публикации

AIR-FUEL RATIO IMBALANCE DIAGNOSTIC USING EXHAUST MANIFOLD PRESSURE

Номер: US20190085782A1
Автор: Brahma Avra, Yoon Youngsoon
Принадлежит:

One embodiment is a method comprising operating an internal combustion engine system including multiple cylinders structured to combust a charge mixture and to output exhaust to an exhaust manifold, an electronic control system structured to control operation of the engine system and an exhaust manifold pressure (EMP) sensor structured to provide data to the electronic control system and performing an air-fuel ratio (AFR) imbalance diagnostic with the electronic control system. The AFR imbalance diagnostic may comprise the acts of processing the data to provide at least one output metric sample, determining an output metric statistic based on the at least one output metric sample, evaluating the output metric statistic relative to one or more predetermined criteria to identify an AFR imbalance condition, and providing an operator perceptible indication of the AFR imbalance condition. 1. A method comprising:operating an engine system including a multi-cylinder engine, an exhaust manifold, an electronic control system structured to control operation of the engine system, and an exhaust manifold pressure (EMP) sensor structured to provide data to the electronic control system; processing the data from the EMP sensor to provide at least one output metric sample,', 'determining an output metric statistic in response to the at least one output metric sample, and', 'evaluating the output metric statistic relative to one or more predetermined criteria to identify an inter-cylinder AFR imbalance condition; and, 'performing an air-fuel ratio (AFR) imbalance diagnostic with the electronic control system, the AFR imbalance diagnostic comprising the acts ofperforming a corrective control operation effective to modify operation of the system in response to the inter-cylinder AFR imbalance condition.2. The method of claim 1 , wherein the AFR imbalance diagnostic further comprises monitoring frequency content of an EMP sensor signal to generate EMP data claim 1 , wherein the cycle ...

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Номер записи: 40
30-03-2017 дата публикации

Estimation device, estimation method, computer-readable non-transitory medium, engine and movement device

Номер: US20170089283A1
Автор: Hiromitsu Soneda, Masao Kondo, Masatoshi Ogawa, Noriyasu Aso, Takeo Kasajima
Принадлежит: Fujitsu Ltd

An estimation device includes: a memory and a processor, wherein the processor is configured to execute a process including: determining a point of a burning having a higher peak in a predetermined range of a heat release rate based on a peak of a burning having a smaller peak, in a heat release rate waveform in an internal combustion engine that performs a multiple-stage fuel injection; calculating a tangential line of the heat release rate waveform at the point; setting a predetermined point on the tangential line as an initial value for identifying a model parameter of a heat release rate model; identifying the model parameter so that a difference between a calculation value of the heat release rate model and the heat release rate waveform is reduced with use of the initial value; and estimating a heat release rate with a result of an identification of the identifying.

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Номер записи: 41
05-05-2022 дата публикации

Method And Device For Detecting A Power-Changing Manipulation Of An Internal Combustion Engine

Номер: US20220136452A1
Автор: Burkhardt Thomas, Holzeder Andreas
Принадлежит:

The embodiment relates to a method for detecting a power-changing manipulation of an internal combustion engine (), wherein the internal combustion engine () has an intake tract () and a pressure sensor () which is arranged in the intake tract (). The method has the following steps:

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Номер записи: 42
16-04-2015 дата публикации

Method for operating an internal combustion engine

Номер: US20150101314A1
Автор: Tim Späder
Принадлежит: MTU Friedrichshafen GmbH

The invention relates to a method and an arrangement for operating an internal combustion engine. In the method a first distribution of values for at least one variable is used, the variable describing a physical property of the internal combustion engine, and over a second time period values for this variable are recorded and classified, such that a second distribution is determined. The first distribution is then compared with the second distribution such that the behavior of the internal combustion engine can be adapted on the basis thereof.

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Номер записи: 43
12-05-2022 дата публикации

SIGNAL PROCESSING DEVICE, AND ENGINE CONTROL DEVICE

Номер: US20220145819A1
Автор: AKAGI Yoshihiko
Принадлежит: Hitachi Astemo, Ltd.

Provided is a signal processing device capable of effectively reducing a work load of a parameter setting operator in response to an increase in parameters constituting complicated filter control. Therefore, in the signal processing device filters an output signal from a sensor mounted on a vehicle, setting is made with respect to a plurality of filters having different filter types or filter coefficients for setting a filter characteristic of a cutoff frequency or a pass band, an individual code is set for each of the plurality of filters, and the signal processing device includes a CPU that selects the individual code based on an engine operating state so that a corresponding filter is selected, and processes an output signal from the sensor using the filter that has been selected. 1. A signal processing device that filters an output signal from a sensor mounted on a vehicle ,wherein setting is made with respect to a plurality of filters having different filter types or filter coefficients for setting a filter characteristic of a cutoff frequency or a pass band,an individual code is set for each of the plurality of filters, andthe signal processing device includes a CPU that selects the individual code based on an engine operating state so that a corresponding filter is selected, and processes an output signal from the sensor using the filter that has been selected.2. The signal processing device according to claim 1 ,wherein the sensor is a knock sensor that detects a knock of an engine mounted on the vehicle.3. The signal processing device according to claim 2 ,wherein the CPU calculates a knock intensity (K(Kfi)) of a specific frequency of a knock sensor signal based on a signal processed by the filter that has been selected.4. The signal processing device according to claim 2 ,further comprising a storage unit that stores a relationship with a specific frequency (Pfi) of a pressure wave in a cylinder corresponding to a specific frequency (Kfi) of a knock ...

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Номер записи: 44
13-04-2017 дата публикации

Engine control unit

Номер: US20170101944A1
Автор: Masafumi UMENO
Принадлежит: Denso Corp

An engine control unit includes an extracting portion acquiring a sound or vibration of an engine from external and extracting vibration components of frequency bands each of which including a resonant frequency of a vibration mode, a waveform synthesis portion synthesizing the vibration components extracted by the extracting portion to generate a synthesis vibration waveform, a calculation portion calculating a time average value by averaging the synthesis vibration waveform in a predetermined time, a peak detection portion detecting a peak strength of the vibration component of the frequency band including a lowest resonant frequency, a storage portion previously storing a first threshold and a second threshold, and a determination portion determining an existence of a knocking and whether a knock level is a first knock level or a second knock level, by comparing the time average value with the first threshold and comparing the peak strength with the second threshold.

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Номер записи: 45
13-04-2017 дата публикации

Onboard electronic control unit

Номер: US20170101958A1
Автор: Junji Tada, Tomoki Yamamoto, Yuki Iwagami
Принадлежит: Mitsubishi Electric Corp

A downlink communication data DND from a main control circuit section to a combination control circuit section is divided into first and second downlink data, high-speed communication using a downlink clock signal and a transmission start instruction signal is performed, a high-speed load which has been directly driven from the main control circuit section is indirectly driven at high speed from the combination control circuit section by the first downlink data, a low-speed analog input signal ANL which has been indirectly inputted to the combination control circuit section is inputted to a specific input channel of a multi-channel converter through an indirect multiplexer, and channel selection is made by the downlink communication data.

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Номер записи: 46
04-04-2019 дата публикации

Control apparatus and method for after-treatment system regeneration

Номер: US20190101076A1
Автор: Davide GESSAROLI, Giorgio Nati, Nicola Pio Sacco, Paolo OLMO
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method and apparatus is provided for regenerating an after-treatment device associated with an exhaust system of an internal combustion engine. A lambda error control provides a lambda error signal based upon a measured lambda value and a predetermined lambda value indicative of rich operation. An after-injection map provides an after-injection preset based upon a speed and a torque of the internal combustion engine. A main injection map provides a torque-making main injection preset based upon the speed of the internal combustion engine and the torque of the internal combustion engine. A controller is configured to provide an after-injection quantity signal based upon the after-injection preset, the lambda error signal and a main injection quantity signal based upon the main injection preset and the lambda error signal such that the measured lambda value is maintained within a regeneration range.

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Номер записи: 47
19-04-2018 дата публикации

CONTROL DEVICE

Номер: US20180106232A1
Автор: OYAMA Katsuya, Sato Chihiro, WATANABE Mitsuhiko
Принадлежит: Hitachi Automotive Systems, Ltd.

The invention, while reducing noise, suppresses a load increase in a processor and a delay in drive control. An engine control unit includes a processor, a driving circuit including a switching element to drive a load such as a fuel injector and an ignition device, and a communication circuit that transmits control signals from the processor to the driving circuit via serial communication. The control signals each include a command frame for controlling the driving circuit and a data frame for driving the load. If a predetermined bits in each of the data frames received from the processor at predetermined time intervals are determined to be the same twice in succession, the engine control unit changes a state of a driving signal ‘Drive’ for driving the load and thereby changes an operating state of the switching element. 1. An onboard control device comprising:a processor;a driving circuit comprising a plurality of switching elements each of which drives one of a plurality of devices to be driven of a single type included in each of cylinders of a multi-cylinder engine, the driving circuit changing a first operating state and a second operating state of the plurality of switching elements on the basis of a plurality of control signals each corresponding to one of the plurality of switching elements, the control signals collectively received from the processor at every predetermined interval of time; anda communication circuit that transmits the plurality of control signals from the processor to the driving circuit via serial communication,wherein the plurality of control signals collectively received from the processor is determined as being abnormal if the plurality of control signals includes a plurality of signals indicating the first operating state.2. An onboard control device comprising:a processor;a driving circuit comprising a plurality of switching elements each of which drives one of a plurality of devices to be driven of a single type included in each of ...

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Номер записи: 48
11-04-2019 дата публикации

Pressure Sensing Systems and Methods

Номер: US20190107023A1
Автор: Perry Paielli
Принадлежит: Tenneco Automotive Operating Co Inc

A pressure sensor includes: a housing; a substrate that is fixed within the housing, that includes a first side that is in contact with a fluid of an exhaust aftertreatment system, and that flexes based on a pressure of the fluid; a first voltage divider that is connected between a first reference potential and a ground potential and that varies a first potential based on flexing of the substrate; and a second voltage divider connected in parallel with the first voltage divider between the first reference potential and the ground potential and that varies a second potential based on flexing of the substrate. A pressure control module is configured to selectively switch switches to connect and disconnect different reference potentials to and from an amplifier, to sample an output of the amplifier, and to convert samples of the output of the amplifier into corresponding digital values.

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Номер записи: 49
11-04-2019 дата публикации

Hybrid partial and full step quadratic solver for model predictive control of diesel engine air path flow and methods of use

Номер: US20190107072A1
Автор: Ilya Kolmanovsky, Jason R. Rodgers, Mike Huang
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc, University of Michigan

Methods and systems for use of model predictive control (MPC) controllers utilizing hybrid, quadratic solvers to solve a linear feasibility problem corresponding to a nonlinear problem for an internal combustion engine plant such as a diesel engine air path. The MPC solves a convex, quadratic cost function having optimization variables and constraints and directs the plant per the output solutions to optimize plant operation while adhering to regulations and constraints. The problem includes a combination of iterative and direct calculations in the primal space depending on whether a partial step (iterative) or a full step (direct) is attempted. Further, primal and dual space array matrices are pre-computed and stored offline and are retrieved via use of a unique identifier associated with a specific active set for a set of constraints. Such hybrid and/or offline calculations allow for a reduction in computational power while still maintaining accuracy of solution results.

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Номер записи: 50
26-04-2018 дата публикации

DETECTION OF IRREGULARITIES IN ENGINE CYLINDER FIRING

Номер: US20180112617A1
Автор: JR. Martin E., Rosalik
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A powertrain assembly includes an engine having at least one cylinder and at least one electric machine operatively connected to the engine. A motor speed sensor is operatively connected to and configured to obtain motor speed data of the electric machine. A controller is operatively connected to the motor speed sensor. The controller including a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for detection of firing irregularities in the at least one cylinder. Execution of the instructions by the processor causes the controller to obtain the motor speed data at a predefined time interval from the motor speed sensor, until a predefined time window is reached. A fast Fourier transform of the motor speed data during the predefined time window is obtained. The controller is configured to control the engine based at least partially on the fast Fourier Transform. 1. A powertrain assembly comprising:an engine having at least one cylinder;at least one electric machine operatively connected to the engine;a motor speed sensor operatively connected to and configured to obtain motor speed data of the at least one electric machine;a controller operatively connected to the motor speed sensor, the controller including a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for detection of firing irregularities in the at least one cylinder; obtain the motor speed data at a predefined time interval from the motor speed sensor, until a predefined time window is reached;', 'obtain a fast Fourier transform of the motor speed data during the predefined time window; and, 'wherein execution of the instructions by the processor causes the controller towherein the controller is configured to control the engine based at least partially on the fast Fourier Transform.2. The assembly of claim 1 , wherein the controller is programmed to:{'sub': 'cyl', 'calculate a calculated engine firing ...

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Номер записи: 51
26-04-2018 дата публикации

Managing firing phase transitions

Номер: US20180112644A1
Автор: Louis J. Serrano
Принадлежит: Tula Technology Inc

Methods and controllers for dynamically altering the phase of a firing sequence during operation of an engine are described. The described methods and controllers are particularly useful in conjunction with cylinder output level modulation operation of an engine such as dynamic skip fire operation of the engine and/or multi-charge level operation of the engine.

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Номер записи: 52
09-06-2022 дата публикации

MIXED FUEL SYSTEM

Номер: US20220178318A1
Автор: Ferguson Steven, Schiltz Michael A.
Принадлежит:

The present invention provides a novel combination of devices to measure and transmit to an electronic controller data pertaining to differential pressures, temperatures, regeneration status, exhaust content, accumulated gas consumption and substitute fuel consumption. The electronic controller compares the data to thresholds; when the controller receives signals indicating these thresholds or limits are met, the controller causes the gas substitution rate to be diminished or set to zero until after-treatments elements are fully regenerated thereby facilitating integration of a mixed fuel system with an application internal combustion engine. 1. A dual fuel controller configured to:receive a manifold air pressure signal from a manifold air pressure sensor;calculate a manifold air pressure based on the received manifold air pressure signal;calculate an expected manifold air pressure;adjust the calculated manifold air pressure based on the expected manifold air pressure;calculate a manifold air pressure voltage based on the adjusted manifold air pressure; andsend the calculated manifold air pressure voltage to an engine control module.2. The dual fuel controller of claim 1 , further configured to:control a switch to prevent the manifold air pressure signal from reaching the engine control module.3. The dual fuel controller of claim 1 , further configured to:Read a manifold air pressure calculated by the engine control module.4. The dual fuel controller of claim 3 , further configured to:Adjust the further adjust the calculated manifold air pressure using the manifold air pressure calculated by the engine control module.5. The dual fuel controller of claim 1 , wherein the dual fuel controller includes a one dimensional table for calculating the manifold air pressure. This application is a continuation-in-part application of U.S. patent application Ser. No. 16/291,141 which was filed with the United States Patent and Trademark Office on Mar. 4, 2019 and which claims the ...

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Номер записи: 53
27-04-2017 дата публикации

Controllers and methods for a fuel injected internal combustion engine

Номер: US20170114747A1
Автор: Larry Nic Rodriguez
Принадлежит: Individual

An internal combustion engine has a fuel injector that is controlled by an engine control unit. According to one embodiment a device receives from a temperature sensor information corresponding to the temperature of the engine. The device transmits substitute temperature information to the engine control unit when the temperature of the engine is within a predetermined range of temperatures. The substitute temperature information corresponds to a temperature that is different than the actual temperature of the ICE. The engine control unit controls the fuel injector so that it operates in response to the substitute temperature information.

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Номер записи: 54
27-04-2017 дата публикации

ENGINE TORQUE ESTIMATION DEVICE, ENGINE TORQUE ESTIMATION SYSTEM, AND ENGINE TORQUE ESTIMATION METHOD

Номер: US20170115172A1
Автор: ASO Noriyasu, Kasajima Takeo, OGAWA Masatoshi, SONEDA Hiromitsu
Принадлежит: FUJITSU LIMITED

An engine torque estimation device includes: a memory; a processor coupled to the memory and the processor configured to, acquire a measured value of a crank angle that is a rotation angle of a crank shaft of an engine, derive, based on the measured value of the crank angle, a calculated value of a crank angle speed, and derive an estimated value of an engine torque, based on a non-linear Kalman filter using a first estimation error that is a difference between the calculated value of the crank angle speed and the estimated value of the crank angle speed. 1. An engine torque estimation device comprising:a memory;a processor coupled to the memory and the processor configured to,acquire a measured value of a crank angle that is a rotation angle of a crank shaft of an engine,derive, based on the measured value of the crank angle, a calculated value of a crank angle speed, andderive an estimated value of an engine torque, based on a non-linear Kalman filter using a first estimation error that is a difference between the calculated value of the crank angle speed and the estimated value of the crank angle speed.2. The engine torque estimation device according to claim 1 ,wherein the estimated value of the crank angle speed is a priori estimated value based on the non-linear Kalman filter, and the processor configured tocalculate the first estimation error and a Kalman gain, based on the non-linear Kalman filter, to derive the estimated value of the engine torque.3. The engine torque estimation device according to claim 1 ,wherein the processor is configured to derive the estimated value of the engine torque, based on the non-linear Kalman filter using a second estimation error that is a difference between the measured value of the crank angle and an estimated value of the crank angle.4. The engine torque estimation device according to claim 3 ,wherein the estimated value of the crank angle is a priori estimated value based on the non-linear Kalman filter, andthe processor ...

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Номер записи: 55
13-05-2021 дата публикации

Simulink modeling method for mechanical hydraulic device of aeroengine fuel regulator

Номер: US20210140382A1
Автор: Rui Wang, Xian DU, Ximing SUN, Xinyue Wang, Yanhua Ma
Принадлежит: Dalian University of Technology

A Simulink modeling method for a mechanical hydraulic device of an aeroengine fuel regulator is proposed. The Simulink modeling method can implement high precision simulation of a mechanical hydraulic device of an engine fuel conditioning system, and greatly increase the simulation speed as compared with the existing modeling simulation in AMESim; solve the problem of a double-layered nested algebraic loop occurring when the mechanical hydraulic device is modeled in Simulink, and improve the simulation precision of the system. In addition, because of having certain universality, the resolving method for a double-layered nested algebraic loop can be generalized to resolve other types of algebraic loops. Meanwhile, the parameters of the simulation model provided by the present invention can be conveniently modified, and can provide a reference for modeling simulation of mechanical and hydraulic devices of engine fuel conditioning systems of other types.

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Номер записи: 56
13-05-2021 дата публикации

SAMPLING VIBRATION FREQUENCY RATE DOWNSIZING TYPE ENGINE COMBUSTION CONTROL METHOD AND ENGINE COMBUSTION CONTROL SYSTEM

Номер: US20210140387A1
Автор: JIN Jae-Min, JUNG In-Soo, LEE Seung-Hyun
Принадлежит:

An engine combustion control method may include: determining, by a controller, whether a fuel injection timing of an engine matches with an engine running condition of the engine; performing, by the controller, when the fuel injection timing matches with the engine running condition of the engine, a fuel injection variable establishment control (or a variable control of a fuel injection timing) that performs a Wavelet process on a frequency band selected by matching a vibration frequency of a vibration sensor signal to an engine frequency transformed under an engine running condition; and when the fuel injection timing matches with the engine running condition, updating a fuel injection parameter by correcting a target value of a combustion factor based on the fuel injection timing. 1. An engine combustion control method , comprising:determining, by a controller, whether a fuel injection timing of an engine matches with an engine running condition of the engine;performing, by the controller, when the fuel injection timing matches with the engine running condition, a variable control of a fuel injection timing that performs a Wavelet process on a frequency band selected by matching a vibration frequency of a vibration sensor signal to an engine frequency transformed under the engine running condition; andwhen the fuel injection timing matches with the engine running condition, updating, by the controller, a fuel injection parameter by correcting a target value of a combustion factor based on the fuel injection timing.2. The engine combustion control method of claim 1 ,wherein the engine running condition includes revolutions per minute (RPM) of the engine and an engine load, and the engine RPM is transformed into the engine frequency.3. The engine combustion control method of claim 1 ,wherein the combustion factor includes at least one of a Location of Peak Pressure, a Location of Maximum Heat Release Ratio, or a Start of Combustion generated in the engine.4. The ...

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Номер записи: 57
01-09-2022 дата публикации

FUEL INJECTION CONTROL DEVICE

Номер: US20220275765A1
Автор: FUJINO Tomoki, INABA Masashi
Принадлежит:

An energization control unit is configured to perform a constant current control by repeatedly switching between an on-state and an off-state of at least one upstream switch provided in an energization path of a coil of a fuel injection valve to control opening of the fuel injection valve in a drive period in which the coil is energized to drive the fuel injection valve. A current detection unit is configured to detect a coil current flowing through the coil. A valve-opening detection unit is configured to detect valve-opening timing of the fuel injection valve based on a change in at least one frequency spectrum of the coil current in a constant current control period in which the constant current control is performed. A valve-opening correction unit is configured to correct valve opening of the fuel injection valve based on a detection result of the valve-opening detection unit. 1. A fuel injection control device configured to control energization of a coil of a fuel injection valve , the fuel injection control device comprising:an energization control unit configured to, in a drive period in which the coil is energized to drive the fuel injection valve, perform a constant current control by repeatedly switching between an on-state and an off-state of at least one upstream switch provided in an energization path to control opening of the fuel injection valve;a current detection unit configured to detect a coil current flowing through the coil;a valve-opening detection unit configured to detect valve-opening timing of the fuel injection valve based on a change in at least one frequency spectrum of the coil current in a constant current control period in which the constant current control is performed; anda valve-opening correction unit configured to correct valve opening of the fuel injection valve based on a detection result of the valve-opening detection unit.2. The fuel injection control device according to claim 1 , whereinthe frequency spectrum is created by ...

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Номер записи: 58
01-09-2022 дата публикации

METHOD AND COMPUTING DEVICE FOR OPERATING A CONTROL UNIT FOR AN EXHAUST GAS SENSOR

Номер: US20220276127A1
Автор: Bevot Claudius, Ledermann Bernhard, Mezger Florian, Zobel Tobias-Gerhard
Принадлежит:

A method for operating a control unit for an exhaust gas sensor, in particular for a broadband lambda sensor for an internal combustion engine, in particular, of a motor vehicle, or for another sensor device. The control unit is designed to electrically activate the exhaust gas sensor. The control unit is, in particular, implemented in the form of an application-specific integrated circuit (ASIC). The method includes: specifying a measuring sequence and/or a starting point in time, in particular, for an operation of the control unit and/or of the exhaust gas sensor, with the aid of a computing device. 113-. (canceled)14. A method for operating a control unit for an exhaust gas sensor for an internal combustion engine of a motor vehicle , the control unit being configured to electrically activate the exhaust gas sensor , the control unit implemented as an application-specific integrated circuit (ASIC) , the method comprising:specifying a measuring sequence and/or a starting point in time for an operation of the control unit and/or of the exhaust gas sensor, using a computing device.15. The method as recited in claim 14 , wherein the exhaust gas sensor is a broadband lambda sensor.16. The method as recited in claim 14 , further comprising:specifying at least one transfer point in time for a data transfer from the control unit to the computing device.17. The method as recited in claim 14 , wherein the computing device exchanges data with the control unit via a serial data link claim 14 , the computing device providing a synchronization signal for the control unit using the data link.18. The method as recited in claim 17 , wherein the serial data link is a bidirectional serial data line.19. The method as recited in claim 17 , wherein the serial data link is an SPI data link.20. The method as recited in claim 17 , wherein the computing device uses a chip select (CS) line or a CS signal of the data link claim 17 , to provide the synchronization signal for the control unit ...

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Номер записи: 59
01-09-2022 дата публикации

Blade angle position feedback system with embedded markers

Номер: US20220276279A1
Автор: Dana TOMESCU, James JARVO
Принадлежит: Pratt and Whitney Canada Corp

There is provided a blade angle feedback system for an aircraft-bladed rotor rotatable about a longitudinal axis and having an adjustable blade pitch angle. A feedback device is coupled to rotate with the rotor and to move along the axis with adjustment of the blade pitch angle. The feedback device comprises a body having position marker(s) embedded therein, the body made of a first material having a first magnetic permeability and the position marker(s) comprising a second material having a second magnetic permeability greater than the first. Sensor(s) are positioned adjacent the feedback device and configured for producing, as the feedback device rotates about the axis, sensor signal(s) in response to detecting passage of the position marker(s). A control unit is communicatively coupled to the sensor(s) and configured to generate a feedback signal indicative of the blade pitch angle in response to the sensor signal(s) received from the sensor(s).

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Номер записи: 60
19-05-2016 дата публикации

Reduced Power Consumption with Sensors Transmitting Data Using Current Modulation

Номер: US20160138492A1
Автор: David Levy, Derek Bernardon
Принадлежит: INFINEON TECHNOLOGIES AG

An engine control system operates to communicate via a sensor link with one or more sensors in a vehicle based on different communication protocols. The sensors alter communication protocols for communicating via the sensor link to an engine control unit to reduce or increase a current consumption according to one or more predetermined criteria. In response to a predetermine threshold of one or more of the predetermined criteria being satisfied, a sensor communicates in a first communication protocol as opposed to a second communication protocol while operating to communicate a current signal or a modulated current signal.

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Номер записи: 61
19-05-2016 дата публикации

DETERMINING START OF INJECTION OF AN INJECTOR OF AN INTERNAL COMBUSTION ENGINE

Номер: US20160138509A1
Автор: GERBETH Robby, MEHR Andreas, MLICKI Frank, STAUDT Markus, WALDER Michael
Принадлежит:

A method for determining a start of injection of an injector of an internal combustion engine, including the following steps: time-resolved detecting of an individual storage pressure curve in a measurement interval; determining a test injection start with the aid of the individual storage pressure curve; determining a tendency of the individual storage pressure curve in a predetermined test interval prior to the test injection start; correcting the individual storage pressure curve subject to the tendency; and determining a start of injection with the aid of the corrected individual storage pressure curve. 110-. (canceled)11. A method for determining a start of injection of an injector of an internal combustion engine , comprising the steps of:detecting a time-resolved individual accumulator pressure curve in a measurement interval;determining a test injection start based on the individual accumulator pressure curve;determining a trend of the individual accumulator pressure curve in a previously determined test interval before the test injection start;correcting the individual accumulator pressure curve as a function of the trend; anddetermining a start of injection based on the corrected individual accumulator pressure curve.12. The method according to claim 11 , wherein the step of determining the test injection start includes: calculating a first gradient curve of the individual accumulator pressure curve;determining a local minimum of the first gradient curve; taking a nearest point left of the local minimum at which a value of the first gradient curve corresponds to a previously determined first default value as an abscissa value of the test injection start; filtering the individual accumulator pressure curve; and calculating the first gradient curve from the filtered individual accumulator pressure curve.13. The method according to claim 12 , wherein the trend of the individual accumulator pressure curve is determined by establishing a test value of the ...

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Номер записи: 62
17-05-2018 дата публикации

A SYSTEM FOR CONTINUOUS CONTROL OF AIR-FUEL RATIO WITH IONIZATION CURRENT

Номер: US20180135540A1
Автор: BARBOLINI Gianluca, Ferrari Marco, GRISENDI Alessandro, LO CASALE Walter
Принадлежит: EMAK S.P.A.

A control system for carburation of an internal combustion engine in use conditions comprising following activities: starting the engine with a value of λ equals λ=λ; constructing a curve c(α) of the ionization current α as a function of the angular position a of the crank shaft; selecting, on this curve c(α), a number of points at intervals Δα of the rotation angle a; calculating value z, equal to integral from 0 to 360° of the curve c(α), is done by summing products Δα×cfor all preselected points; interrupting supply of fuel for some cycles in order to externally modify factor λand take it to value λ; for value λconstructing curve c(α) and calculating value z; calculating difference Δ=z−z, and if the difference is >Δin absolute value, intervening on carburation by increasing the quantity of fuel injected in a case of a positive difference (lean mixture) and by reducing the quantity of fuel injected in a case of a negative difference (rich mixture). 1. A control system of carburation of an internal combustion engine comprising following activities:{'sub': '0', 'a. operating the engine with an air/fuel ratio of a predetermined initial value (λ);'}{'sub': 0', 'i', 'i, 'b. for the initial value (λ) of the air/fuel ratio, constructing a first curve (c(α)) representing the ionization current (c) as a function of the angular position (α) of a crankshaft of the engine;'}{'sub': 0', 'i, 'c. calculating a value (z) equal to an integral of the first curve (c(α)) in a predetermined angular interval of the crankshaft;'}{'sub': 1', '0, 'd. modifying the air/fuel ratio of the engine, bringing the ratio to a second value (λ) different to the initial value (λ);'}{'sub': 1', 'i', 'i, 'b. for the second value (λ) of the air/fuel ratio, constructing a second curve (c(α)) representing the ionization current (c) as a function of the angular position (α) of the crankshaft;'}{'sub': 1', 'i, 'c. calculating a value (z) equal to an integral of the second curve (c(α)) in a predetermined ...

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Номер записи: 63
08-09-2022 дата публикации

APPARATUS AND METHOD FOR ENGINE CONTROL

Номер: US20220282683A1
Автор: Viele Matthew
Принадлежит:

An apparatus and method for sensing the position of a piston in a valve in a gas compressor or the position of a piston in a free piston engine. The apparatus includes a plurality of valve sensors, a plurality of magnets, and a plurality of valve sense modules coupled to the valve sensors and a controller coupled to the plurality of valve sense modules. The method includes processing information received from the valve sensors to determine the linear position of the valves in the gas compressor or a piston in a free piston engine. 1. An apparatus comprising:a first cylinder in a gas compressor, the first cylinder including a first cylinder plurality of valves and a first cylinder plurality of valve sensors, each of the first cylinder plurality of valve sensors associated with one of the first cylinder plurality of valves, each of the first cylinder plurality of valves including a first cylinder valve moving part having a first cylinder valve magnet coupled to the first cylinder valve moving part;a first cylinder electronic sense module coupled to each of the first cylinder plurality of valve sensors;a second cylinder in the gas compressor, the second cylinder including a second cylinder plurality of valves and a second cylinder plurality of valve sensors, each of the second cylinder plurality of valve sensors associated with one of the second cylinder plurality of valves, each of the second cylinder plurality of valves including a second cylinder valve moving part with a second cylinder valve magnet coupled to the second cylinder valve moving part;a second cylinder electronic sense module coupled to each of the second cylinder plurality of valve sensors and the first cylinder electronic sense module; anda controller coupled to the first cylinder electronic sense module.2. The apparatus of claim 1 , wherein the first cylinder valve moving part comprises a first cylinder valve shaft coupled to a first cylinder valve piston.3. The apparatus of claim 1 , wherein at ...

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Номер записи: 64
14-08-2014 дата публикации

Processing system and method for calculating pressure decreases due to injection events in a high-pressure fuel system

Номер: US20140224220A1
Автор: David Lee BALDWIN, David M. Carey, Donald J. Benson, Paul V. MOONJELLY
Принадлежит: Cummins Inc

A system and method is provided to analyze an intermediate pressure signal portion between an end of an injection event signal portion and a start of a subsequent injection event signal portion. The analysis is simplified by identifying a plurality of single cycle windows and calculating a single value, such as a mean or a median, for each of the windows. An intermediate portion single value is determined by averaging the single values for each of the windows. The intermediate portion single value may then be used to identify pumping events or leakage errors that occur during the intermediate pressure signal portion that affect further analysis of the intermediate pressure signal portion.

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Номер записи: 65
26-05-2016 дата публикации

TURBOCHARGER CONTROL DUTY DEVIATION COMPENSATION METHOD

Номер: US20160146131A1
Автор: Hur Dong-Han
Принадлежит:

A turbocharger control duty deviation compensation method may include judging a learning condition given deviation of a target position calculated using a turbocharger model and an actual position of a turbocharger together with atmospheric pressure, when a turbocharger control starts with a boost control duty value which matches with a required boost pressure target of an engine based on controller, calculating a learning value based on (100−target control duty)/(100−actual control duty) when the control duty deviation compensation control of the target control duty value calculated using the turbocharger actuator control duty model and the actual control duty value of the turbocharger are necessary, and acquiring a control to which any difference in the hardware-based characteristics of the driving mechanism related to the turbocharger are reflected since the control duty value of the target position is corrected with the calculated learning value, and the turbocharger is controlled. 1. A turbocharger control duty deviation compensation method , comprising:(A) a position difference detection step of detecting an actual position of an turbocharger, calculating a target position from a turbocharger model matching with the turbocharger, and determining position deviation of the actual position and the target position, when a control of the turbocharger starts using a boost control duty value which matches with a required engine boost pressure target value of an engine in which a controller is operable;(B) a deviation compensation judgment step of judging whether a control duty deviation compensation control of the boost control duty value is performed based on a learning condition given an atmospheric pressure and the position deviation;(C) a deviation compensation calculation step of calculating an actual control duty value based on the actual position, calculating a target control duty value based on the target position from a turbocharger actuator control duty ...

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Номер записи: 66
24-05-2018 дата публикации

Closed-loop adaptive controls from cycle-to-cycle for injection rate shaping

Номер: US20180142638A1
Автор: Syed Shah Jalel
Принадлежит: Cummins Inc

The present disclosure provides a system for adjusting a fuel injector drive signal during a fuel injection event wherein the system comprises an engine having a fuel injector, a fuel control module configured to generate control signals corresponding to a desired fueling profile of a fuel injection event, and a fueling profile interface module that outputs drive profile signals to the fuel injector in response to the control signals to cause the fuel injector to deliver an actual fueling profile, wherein the fueling profile interface module changes the drive profile signals during the fuel injection event in response to a parameter signal indicating a characteristic of the actual fueling profile.

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Номер записи: 67
02-06-2016 дата публикации

Method for determining at least one injection parameter of an internal combustion engine, and internal combustion engine

Номер: US20160153382A1
Автор: Michael Walder, Robby Gerbeth
Принадлежит: MTU Friedrichshafen GmbH

A method for determining at least one injection parameter of an internal combustion engine, including the following steps: detecting a pressure profile in a time-resolved manner in an injection system of an internal combustion engine at least during an injection; providing a reference pressure profile for at least one operating point of the injection system; comparing the detected pressure profile with the reference pressure profile, and ascertaining at least one injection parameter as a function of the comparison.

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Номер записи: 68
02-06-2016 дата публикации

SYSTEMS AND METHODS FOR SENSING FUEL VAPOR PRESSURE

Номер: US20160153384A1
Автор: Kumar Pankaj, Makki Imad Hassan, Pursifull Ross Dykstra, Ulrey Joseph Norman
Принадлежит:

Systems and methods for sensing fuel vapor pressure are provided. In one example, a method for a vehicle comprises: during an engine start after the engine has been off for at least a minimum duration, actively controlling fuel pressure in the fuel system to a vapor-liquid volume ratio greater than zero and then recording sensed fuel pressure and temperature in the fuel system. In this way, the vapor pressure of a fuel at a given temperature may be accurately measured during isothermal conditions, thereby improving an estimation of fuel volatility. 1. A method for a vehicle , comprising:during an engine start after the engine has been off for at least a minimum duration, actively controlling fuel pressure in a fuel system to a vapor-liquid volume ratio greater than zero and then recording sensed fuel pressure and temperature in the fuel system.2. The method of claim 1 , wherein actively controlling the fuel pressure comprises pulsing a fuel pump.3. The method of claim 1 , wherein recording the sensed fuel pressure and temperature is performed responsive to a detection of fuel vapor.4. The method of claim 3 , wherein the detection of fuel vapor comprises sensing a decrease in volumetric efficiency of the fuel pump.5. The method of claim 3 , further comprising actively controlling the fuel pressure after recording and in response to the sensed fuel pressure and temperature.6. The method of claim 1 , further comprising determining fuel volatility based on the recorded sensed fuel pressure and temperature claim 1 , and adjusting engine operation during subsequent engine combustion conditions based on the determined fuel volatility via an engine controller.7. The method of claim 1 , further comprising determining fuel composition based on the recorded sensed fuel pressure and temperature claim 1 , and adjusting engine operation during subsequent engine combustion conditions based on the determined fuel composition via an engine controller.8. The method of claim 1 , ...

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Номер записи: 69
17-06-2021 дата публикации

METHOD FOR THE MODEL-BASED CONTROL AND REGULATION OF AN INTERNAL COMBUSTION ENGINE

Номер: US20210180535A1
Автор: BERGMANN Daniel, Buchholz Michael, GRAICHEN Knut, NIEMEYER Jens, REMELE Jörg
Принадлежит: MTU Friedrichshafen GmbH

A method for the model-based control and regulation of an internal combustion engine. The method includes calculating, as a function of a set torque, injection system set values for controlling the injection system actuators via a combustion model and calculating gas path set values for controlling the gas path actuators via a gas path model. The combustion model is adapted during operation of the internal combustion engine into the form of a complete data-based model. A measure of quality is minimized by an optimizer by changing the injection system set values and gas path set values within a prediction horizon, and the injection system set values and gas path set values are set by the optimizer, which is critical for adjusting the operating point of the internal combustion engine by using the minimized measure of quality. 1. A method for model-based control and regulation of an internal combustion engine , comprising:calculating, via a combustion model, as a function of a set torque (M(SOLL), injection system set values for controlling the injection system actuators;calculating, via a gas path model, gas path set values for controlling the gas path;adapting the combustion model data-based during ongoing operation of the internal combustion engine;minimizing a measure of quality (J), by an optimizer, by changing the injection system set values and gas path set values within a prediction horizon; andsetting, by the optimizer, the injection system set values and the gas path set values as being critical for adjusting the operating set point of the internal combustion engine by using the minimized measure of quality (J).2. The method according to claim 1 , wherein the combustion model is in the form of a completely data-based model.3. The method according to claim 2 , wherein the data-based model is created in a first step and the set values of the internal combustion engine are varied on a single cylinder test bench claim 2 , wherein in a second step trend ...

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Номер записи: 70
22-09-2022 дата публикации

INTERNAL COMBUSTION ENGINE CONTROL APPARATUS

Номер: US20220298986A1
Автор: Kitao Takeshi
Принадлежит: Mitsubishi Electric Corporation

In as internal combustion engine control apparatus, an electronic control device is configured to subject a signal from a knock sensor to short-time Fourier transform, to thereby generate an observation matrix. Further, the electronic control device is configured to decompose the observation matrix into knocking vibration data being data on vibration caused by knocking and mechanical vibration data being data on vibration other than the knocking. 1. An internal combustion engine control apparatus , comprising an electronic control device to which a signal from a knock sensor configured to detect vibration of an internal combustion engine is to be input , apply short-time Fourier transform to an observation signal that is received from the knock sensor to generate an observation matrix; and', 'apply semi-supervised non-negative matrix factorization to a noise basis matrix that is obtained from a reference signal that is received from the knock sensor in a state in which mechanical vibration other than knocking occurs, and to the observation matrix, to thereby decompose the observation matrix into knocking vibration data being data on vibration caused by knocking and mechanical vibration data being data on vibration other than the knocking., 'the electronic control device being configured to2. The internal combustion engine control apparatus according to claim 1 ,wherein the electronic control device includes knock determination circuitry configured to perform determination relating to knocking based on the knocking vibration data, andwherein the knock determination circuitry is configured to correct a determination result relating to knocking based on the mechanical vibration data.3. The internal combustion engine control apparatus according to claim 2 , wherein the knock determination circuitry is configured to avoid correcting the determination result under a state in which learning of the noise basis matrix is unfinished.4. An internal combustion engine control ...

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Номер записи: 71
08-06-2017 дата публикации

INJECTION CONTROL DEVICE

Номер: US20170159597A1
Автор: OMI Keita
Принадлежит:

An injection control device of the present disclosure includes a control section that controls a fuel injection of an injector and a filter to which a sensing signal of a fuel pressure sensor to sense a fuel pressure of the injector is inputted. The filter includes a first filter and a second filter which is higher in a cut-off frequency than the first filter. The control section determines a fuel injection start timing, at which the injector is opened to start injecting the fuel into the internal combustion engine, by a crank angle and calculates a valve opening output to bring the injector from a closed state to an opened state on the basis of the sensing signal. Further, at an earlier timing, which is earlier than the fuel injection start timing by a calculation time required to calculate the valve opening output, the control section samples the sensing signal via the second filter and calculates the valve opening output on the basis of the sampled sensing signal. 1. An injection control device comprising:a control section that controls an injector to inject fuel into an internal combustion engine; anda filter to which a sensing signal of a fuel pressure sensor to sense a pressure of the fuel to be supplied to the injector is inputted, whereinthe filter includes a first filter and a second filter which is higher in a cut-off frequency than the first filter,the control section determines a fuel injection start timing, at which the injector is opened to start injecting the fuel into the internal combustion engine, by a crank angle and calculates a valve opening output to bring the injector from a closed state to an opened state on the basis of the sensing signal, andat an earlier timing, which is earlier than the fuel injection start timing by a calculation time required to calculate the valve opening output, the control section samples the sensing signal via the second filter and calculates the valve opening output on the basis of the sampled sensing signal.2. The ...

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Номер записи: 72
14-06-2018 дата публикации

Method and apparatus of controlling vibration for hybrid electric vehicle

Номер: US20180162364A1
Автор: Jeong Soo Eo, Sung Jae Kim
Принадлежит: Hyundai Motor Co, Kia Motors Corp

Disclosed are a method of and an apparatus for controlling a vibration of a hybrid electric vehicle. An apparatus for controlling a vibration of a hybrid electric vehicle may include: an engine position detector detecting a position of an engine; an air amount detector detecting an air amount flowing into the engine; an accelerator pedal position detector detecting a position of an accelerator pedal; a vehicle speed detector detecting a speed of the hybrid electric vehicle; and a controller. The controller controls operation of a motor based on the position of the engine, the air amount, the position of the accelerator pedal, and the speed of the hybrid electric vehicle.

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Номер записи: 73
23-05-2019 дата публикации

Electronic System Comprising An Intermediate Printed Circuit Board For A Fluid Property Sensor And Fluid Property Sensor

Номер: US20190159341A1
Автор: Bengt Eliassen, Conrad Judersleben, Ion Grozea, Jose Fernandez, Maciej Ziemak, Marcin Rusak, Niklas Jansson, Rafael Ferrer Ruiz
Принадлежит: MEAS France SAS, Wema System AS

An electronic system for a fluid property sensor comprises a fluid printed circuit board adapted to analyze a property of a fluid, an external connector, and an intermediate printed circuit board. The intermediate printed circuit board is electrically connected between the fluid printed circuit board and the external connector.

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Номер записи: 74
15-06-2017 дата публикации

METHOD AND DEVICE FOR ASCERTAINING A GAS-MASS FLOW IN A COMBUSTION ENGINE

Номер: US20170167422A1
Автор: Schwartzkopff Thomas
Принадлежит:

A method for ascertaining a mean value of a gas-mass flow in a combustion engine. The method includes measuring a gas-mass flow impinged upon by a pulsation, smoothing a sensor signal obtained by the measurement, applying a correction quantity to the smoothed sensor signal in order to obtain the mean value of the gas-mass flow, and ascertaining the correction quantity as a function of the operating state of the combustion engine with the aid of a data-based, non-parametric function model. 1. A method for ascertaining a mean value of a gas-mass flow in a combustion engine , the method comprising:measuring a gas-mass flow impinged upon by a pulsation;smoothing a sensor signal obtained by the measurement;applying a correction quantity to the smoothed sensor signal in order to obtain the mean value of the gas-mass flow; andascertaining the correction quantity as a function of the operating state of the combustion engine with the aid of a data-based, non-parametric function model.2. The method as recited in claim 1 , wherein the data-based claim 1 , non-parametric function model includes a Gaussian process model or corresponding to this model.3. The method as recited in claim 1 , wherein the correction quantity is applied to the smoothed sensor signal in an additive or multiplicative manner.4. The method as recited in claim 1 , wherein the data-based claim 1 , non-parametric function model has as input quantities at least one of the following input quantities:the averaged sensor signal,a pulsation frequency that results from the engine speed and the number of cylinders of the combustion engine,a pulsation amplitude,one or more harmonic frequency(ies) with respect to the pulsation frequency,an air temperature of the ambient air,an air pressure of the ambient air, anda humidity of the ambient air.5. The method as recited in claim 4 , wherein the data-based claim 4 , non-parametric function model being provided with at least three of the input quantities.6. The method as ...

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Номер записи: 75
15-06-2017 дата публикации

MISFIRE DETECTION DEVICE

Номер: US20170167952A1
Автор: HIROI Taiyo, Honda Daisuke, KAJINO Takanobu, MATSUKAWA Takanori
Принадлежит:

A rotation acquisition unit acquires a rotation signal correlated with a rotational state of an internal combustion engine. An analysis unit performs frequency analysis of the rotation signal acquired with the rotation acquisition unit. An inter-cylinder determination unit determines whether an inter-cylinder component is smaller than an inter-cylinder threshold representing occurrence of misfire. The inter-cylinder component is a frequency component of an inter-cylinder cycle. The inter-cylinder cycle is computed by dividing an ignition cycle, which is one burning cycle of the internal combustion engine, by a number of cylinders of the internal combustion engine. 1. A misfire detection device comprising:a rotation acquisition unit configured to acquire a rotation signal correlated with a rotational state of an internal combustion engine;an analysis unit configured to perform frequency analysis of the rotation signal acquired with the rotation acquisition unit; andan inter-cylinder determination unit configured to determine whether an inter-cylinder component is smaller than an inter-cylinder threshold representing occurrence of misfire, whereinthe inter-cylinder component is a frequency component of an inter-cylinder cycle,the inter-cylinder cycle is a value computed by dividing an ignition cycle by a number of cylinders of the internal combustion engine, andthe ignition cycle is one burning cycle of the internal combustion engine.2. The misfire detection device according to claim 1 , whereinthe inter-cylinder determination unit is configured to determine whether the inter-cylinder component is smaller than the inter-cylinder threshold individually for each of the cylinders.3. The misfire detection device according to claim 1 , further comprising:a threshold setting unit configured to set the inter-cylinder threshold variably according to the operation state of the internal combustion engine.4. The misfire detection device according to claim 1 , further comprising: ...

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Номер записи: 76
21-06-2018 дата публикации

Ion Processing System

Номер: US20180169582A1
Автор: Sherif Matta
Принадлежит: Ic LLC

An ion processing system for collecting and processing combustion information to improve engine efficiency and decrease engine emissions. The ion processing system generally includes a processing unit which is adapted to receive signals from engine sensors such as the crank sensor, injector sensor, and cam sensor. An ion sensor is provided to detect all phases of combustion and generate an ion current signal to be received by the processing unit. Signal conditioners are provided for each individual signal source (crank sensor, injector sensor, cam sensor, ion sensor) to amplify and filter the signals for optimal detection and analysis by the processing unit. The processing unit may monitor crank positioning, cam positioning, and injector timing across all stages of operation of an engine in real-time. This information may be processed and communicated to an engine control unit to improve efficiency and reduce emissions, or to a computing device for diagnostics.

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Номер записи: 77
21-06-2018 дата публикации

METHOD AND SYSTEM FOR DETECTION OF TORQUE DEVIATIONS OF AN ENGINE IN A VEHICLE

Номер: US20180171918A1
Автор: JOHANSSON Björn, SVÄRD Carl
Принадлежит: SCANIA CV AB

A method and a system for detection of torque deviations of an engine () in a vehicle (). A measurement () is made of actual measured values Drelated to a behavior of at least one parameter which is related to an actual torque Mdelivered by the engine (). This actual torque Mis delivered here by the engine () in consequence of a torque Mdemanded from the engine (). A comparison () is then made of the actual measured values Dwhich are related to the behavior of the at least one parameter with previously determined measured values Dof correspondingly at least one respective parameter related to the actual torque M. The previously determined measured values Dwill here have been determined during normal operation of the vehicle (). Detection is then made of whether the actual measured actual torque Mdeviates from the demanded torque M. The detection is based here on the comparison of the actual measured values Dwith the previously determined measured values D. 1. A method for detection of torque deviations of an engine in a vehicle , comprising:{'sub': act', 'eng', '_', 'act', 'eng', '_', 'req, 'a measurement of actual measured values Drelated to a behavior of at least one parameter which is related to an actual torque Mdelivered by said engine in consequence of a torque Mdemanded from said engine;'}{'sub': act', 'ref', 'eng', '_', 'act', 'ref, 'a comparison of said actual measured values Drelated to said behavior of said at least one parameter with previously determined measured values Dof correspondingly at least one respective parameter related to said actual torque M, said previously determined measured values Dhaving been determined during normal operation of said vehicle; and'}{'sub': eng', '_', 'act', 'eng', '_', 'req, 'a detection of whether said actual torque Mdeviates from said demanded torque M, said detection being based on said comparison.'}2. A method according to claim 1 , in which said previously determined measured values D claim 1 , which corresponds ...

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Номер записи: 78
01-07-2021 дата публикации

Device for engine monitoring

Номер: US20210202926A9
Автор: William J. Gillette
Принадлежит: Logimesh IP LLC

A device for monitoring the function of an engine is powered by heat from the engine or other sources other than a conventional, external direct electrical power supply, which may create sparks and/or be unavailable. The device monitors one or more of heat, vibration, or other parameters and can detect certain problems with engine function. The device is particularly suited for remote engine monitoring, and can store and/or display data concerning monitored engine characteristics, and/or directly or indirectly send such data to a location removed from the engine.

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Номер записи: 79
22-06-2017 дата публикации

Diagnosing cylinder pressure sensor gain and offset

Номер: US20170176280A1
Автор: Alok A. Joshi, Edmund P. Hodzen, Richard A. Booth
Принадлежит: Cummins Inc

An apparatus includes a sensor module, an offset diagnostic module, and a notification module. The sensor module is in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine. The offset diagnostic module is structured to interpret the cylinder pressure data to determine an offset of the cylinder pressure sensor based on a reference in-cylinder pressure and the actual in-cylinder pressure. The notification module is structured to provide an offset error notification responsive to the offset being greater than a threshold offset.

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Номер записи: 80
28-05-2020 дата публикации

ENGINE ABNORMALITY DETECTION DEVICE

Номер: US20200165994A1
Автор: NOGUCHI Shintarou, Sase Ryo
Принадлежит: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

An engine abnormality detection device for detecting variation of a combustion state of each of a plurality of cylinders of an engine, the engine abnormality detection device includes: a rotation information acquisition part configured to obtain rotation information related to a rotation state of the engine; a frequency analysis part configured to perform frequency analysis of the rotation information, the frequency analysis part being configured to calculate a component of fand a component fthrough the frequency analysis of the rotation information, where fis a frequency of a single cycle of the engine and fis a frequency of pulsation of the engine; and a detection part configured to detect variation of exhaust energy of each cylinder on the basis of the component of fand the component of f. 2. The engine abnormality detection device according to claim 1 , [{'sub': Ne', 'Ne, 'a fthreshold being a threshold of the component of f, and'}, {'sub': cyl', 'cyl, 'an upper limit threshold fbeing an upper limit threshold of the component f,'}, 'are set in advance, and, 'wherein, for the detection part,'}{'sub': Ne', 'Ne', 'cyl', 'cyl, 'wherein the detection part is configured to detect that exhaust energy of one of the plurality of cylinders is high, if the component of fis not smaller than the fthreshold, and the component of fis not smaller than the fupper limit threshold.'}3. The engine abnormality detection device according to claim 1 , [{'sub': Ne', 'Ne, 'a fthreshold being a threshold of the component of f, and'}, {'sub': cyl', 'cyl, 'a flower limit threshold being a lower limit threshold of the component f,'}, 'are set in advance, and, 'wherein, for the detection part,'}{'sub': Ne', 'Ne', 'cyl', 'cyl, 'wherein the detection part is configured to detect that exhaust energy of one of the plurality of cylinder is low, if the component of fis not smaller than the fthreshold, and the component of fis not greater than the flower limit threshold.'}4. The engine abnormality ...

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Номер записи: 81
09-07-2015 дата публикации

Universal solenoid driver

Номер: US20150192178A1
Автор: Christian SCHWEIKERT, Joseph Funyak, Kyle Williams, Patrick Leteinturier
Принадлежит: INFINEON TECHNOLOGIES AG

A device may include a driver integrated circuit (IC) comprising a first control unit and a second control unit, a first solenoid that is electrically coupled to the first control unit, a second solenoid that is electrically coupled to the second control unit; at least one sensor, a clock that synchronizes a microcontroller and the driver IC, and a peripheral bus that communicatively couples the first control unit, the second control unit. The microcontroller and the driver IC form an outer control loop that actuates the first solenoid and the second solenoid, and the first control unit, the second control unit, and the at least one sensor form an inner control loop that controls the first solenoid and the second solenoid.

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Номер записи: 82
15-07-2021 дата публикации

SYSTEM AND METHOD FOR DETERMINING THE TIMING OF AN ENGINE EVENT

Номер: US20210215116A1
Автор: Bizub Jeffrey Jacob, Guerriero Marco, Matthews Brett Alexander
Принадлежит:

Systems and methods for estimating an engine event location are disclosed herein. In one embodiment, a control system is configured to receive feedback from at least one vibration sensor coupled to a reciprocating engine, estimate an engine parameter based at least on the feedback and an Empirical Transform Function (ETF), estimate a location of an engine event based on the engine parameter, and adjust operation of the reciprocating engine based at least on the location of the engine event. 1. A system , comprising: receive feedback from at least one vibration sensor;', 'estimate an engine parameter of a reciprocating engine based at least on the feedback and an Empirical Transform Function (ETF);', 'estimate a location of at least one engine event based on the engine parameter, wherein the at least one engine event comprises a first engine event relating to a valve of the reciprocating engine; and', 'adjust operation of the reciprocating engine based at least on the location of the at least one engine event., 'a controller configured to2. The system of claim 1 , wherein the first engine event relates to a closure of the valve.3. The system of claim 1 , wherein the valve comprises an intake valve or an exhaust valve.4. The system of claim 1 , wherein the at least one engine event comprises a second engine event relating to a peak firing pressure of a cylinder of the reciprocating engine.5. The system of claim 1 , wherein the controller is configured to adjust an engine timing map of the reciprocating engine claim 1 , an oxidant/fuel ratio of the reciprocating engine claim 1 , a flow of exhaust recirculation gas of the reciprocating engine claim 1 , a position of the valve of the reciprocating engine claim 1 , or another operating parameter of the reciprocating engine in response to the location of the at least one engine event.6. The system of claim 1 , wherein the controller is configured to estimate the engine parameter using a processed signal claim 1 , and ...

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Номер записи: 83
20-06-2019 дата публикации

FLOW RATE DETECTOR

Номер: US20190186400A1
Автор: Ariyoshi Yuji, HIDAKA Shinichiro, KAWAI Masahiro, MORINAGA Naoki
Принадлежит: Mitsubishi Electric Corporation

A flow rate detector includes a detection circuit, which is configured to output as an analog signal a voltage in accordance with a flow rate of air flowing through an intake pipe, and a conversion circuit, which is configured to convert the analog signal input from the detection circuit to a digital signal based on an analog-to-digital conversion characteristic to output the digital signal. The analog signal that corresponds to a forward flow direction and is input to the conversion circuit is set to have a value larger than an input voltage range in which a missing code may occur in the analog-to-digital conversion characteristic. 1. A flow rate detector , which is configured to detect a flow rate of air flowing through an intake pipe for introducing the air into an internal combustion engine , the flow rate detector comprising:a bypass passage, which is configured to allow part of the air flowing through the intake pipe to flow therethough;a detection circuit, which is configured to output as an analog signal a voltage in accordance with a flow rate of the air flowing through the intake pipe by dividing a reference voltage based on a magnitude of the flow rate and whether a flow direction of the air is a forward flow direction or a backward flow direction, the forward flow direction being a direction from the flow rate detector toward the internal combustion engine, the backward flow direction being a direction opposite from the forward flow direction; anda conversion circuit, which is configured to receive as input the analog signal output by the detection circuit, and to convert the input analog signal into a digital code based on an analog-to-digital conversion characteristic to output the digital code obtained by conversion as a digital signal, the analog-to-digital conversion characteristic being a characteristic obtained by associating an input voltage input to the conversion circuit with the digital code output by the conversion circuit,wherein a forward ...

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Номер записи: 84
14-07-2016 дата публикации

Sensor for Determining Engine Characteristics

Номер: US20160201611A1
Автор: Jeffrey Jacob Bizub
Принадлежит: General Electric Co

A system includes a turbocharger and at least one sensor disposed adjacent the turbocharger. The at least one sensor is configured to detect one or more resonance frequencies of the turbocharger. The system also includes a controller configured to receive a signal from the at least one sensor representative of the detected one or more resonance frequencies of the turbocharger and to analyze the one or more resonance frequencies to determine one or more characteristics of the turbocharger.

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Номер записи: 85
22-07-2021 дата публикации

Multiple Thermocouple Management

Номер: US20210223807A1
Автор: Luca Giuseppe Pairolero, Simone ALPE, Stefano NIEDDU
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An interface module includes: N pairs of input connectors that are electrically conductive and that are configured to connect to and disconnect from N different temperature sensors, respectively; and M output connectors that are electrically conductive, where each pair of input connectors includes: a first input connector configured to connect to and disconnect from a first connector soldered to a first wire connected to one of the N different temperature sensors; and a second input connector configured to connect to and disconnect from a second connector soldered to a second wire connected to the one of the N different temperature sensors, where the second input connectors are electrically connected to second ones of the M output connectors, respectively, and where the first input connectors of the N pairs of input connectors are all electrically connected to a node that is connected to a first one of the M output connectors.

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Номер записи: 86
12-07-2018 дата публикации

Methods and systems for overriding automotive computer controlled cylinder management

Номер: US20180195448A1
Автор: Brock Matthew Eastman
Принадлежит: Individual

The presently disclosed subject matter relates to an apparatus which enables a use to easily and safely disable a vehicular variable cylinder management technology system, while enabling restoration of the VCM/ECO mode under certain vehicle-related conditions or driving conditions. The presently disclosed apparatus comprises a potentiometer capable of modifying the voltage input received by the vehicle sensors.

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Номер записи: 87
13-07-2017 дата публикации

Valve Control Processes for an Internal Combustion Engine

Номер: US20170198649A1
Автор: Braun Tobias, Kainz Josef
Принадлежит: Continental Automotive GmbH

The present disclosure relates to internal combustion engines and its teachings may be embodied in methods for controlling and identifying valve control times of an internal combustion engine. Some embodiments may include a method comprising: measuring dynamic pressure oscillations in the inlet section or outlet section of the respective series-production engine; determining a crankshaft-position feedback signal; determining the phase angles of selected signal frequencies using discrete Fourier transformation; and determining the valve control times of the respective series-production internal combustion engine based on the determined phase angles, the reference phase angles, and reference valve control times with the same signal frequencies of the pressure oscillations of a reference internal combustion engine or of a model function derived therefrom. 1. A method for controlling an internal combustion engine based on valve control times of a series-production internal combustion engine , the method comprising:measuring dynamic pressure oscillations in the inlet section or outlet section of the respective series-production internal combustion engine;determining a crankshaft-position feedback signal;determining the phase angles of selected signal frequencies of the measured pressure oscillations based at least in part on the measured pressure oscillations and the crankshaft-position feedback signal using discrete Fourier transformation; anddetermining the valve control times of the respective series-production internal combustion engine based at least in part on the determined phase angles, the reference phase angles, and reference valve control times with the same signal frequencies of the pressure oscillations of a reference internal combustion engine or of a model function derived therefrom.2. The method as claimed in claim 1 , wherein the determined valve control times are compared with reference valve control times of the reference internal combustion engine and ...

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Номер записи: 88
30-07-2015 дата публикации

Method for adjusting an injection behavior of injectors in an internal combustion engine, engine control unit and system for adjusting an injection behavior

Номер: US20150211430A1
Автор: Aron Toth, Jörg Remele
Принадлежит: MTU Friedrichshafen GmbH

The invention relates to a method for adjusting an injection behavior of injectors in an internal combustion engine, including the following steps: switching off an injector; detecting a crank angle signal of the internal combustion engine; transforming the crank angle signal into the frequency range by way of a discrete Fourier transformation; detecting and storing a quantity of the harmonic of the 0.5th order of the Fourier transform of the crank angle signal, and assigning the quantity to the switched-off injector; switching on the switched-off injector; performing the previous steps sequentially for all injectors of the internal combustion engine; forming an average value of the stored quantities with respect to all injectors, and correcting the control of the injectors using a deviation from the average value of a quantity associated with an injector that is to be corrected.

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Номер записи: 89
27-06-2019 дата публикации

SYSTEM AND METHOD FOR DETERMINING THE TIMING OF AN ENGINE EVENT

Номер: US20190195161A1
Автор: Bizub Jeffrey Jacob, Guerriero Marco, Matthews Brett Alexander
Принадлежит:

Systems and methods for estimating an engine event location are disclosed herein. In one embodiment, a control system is configured to receive feedback from at least one knock sensor coupled to a reciprocating engine, estimate an engine parameter based at least on the feedback and an Empirical Transform Function (ETF), estimate a location of an engine event based on the engine parameter, and adjust operation of the reciprocating engine based at least on the location of the engine event. 1. A system for estimating an engine event location , comprising:a reciprocating engine;at least one knock sensor coupled to the reciprocating engine; and receiving feedback from the at least one knock sensor;', 'estimating an engine parameter of the reciprocating engine based at least on the feedback and an Empirical Transform Function (ETF);', 'estimating a location of an engine event based on the engine parameter; and', 'adjusting operation of the reciprocating engine based at least on the location of the engine event., 'a control system for2. The system of claim 1 , wherein the engine event comprises a peak firing pressure of a cylinder of the reciprocating engine.3. The system of claim 2 , wherein the control system is configured to adjust an engine timing map of the reciprocating engine claim 2 , an oxidant/fuel ratio of the reciprocating engine claim 2 , a flow of exhaust recirculation gas of the reciprocating engine claim 2 , a position of an intake or exhaust valve of the reciprocating engine claim 2 , or another operating parameter of the reciprocating engine in response to the location of the peak firing pressure.4. The system of claim 1 , wherein the control system is configured to estimate the engine parameter using a processed signal claim 1 , and wherein the control system is configured to process the signal by performing a Fourier transform on the signal.5. The system of claim 4 , wherein the control system is configured to multiply the processed signal by the ETF to ...

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Номер записи: 90
18-06-2020 дата публикации

SYSTEM AND METHOD FOR CONTROLLING ENGINE TONE BY ARTIFICIAL INTELLIGENCE BASED ON SOUND INDEX OF VEHICLE

Номер: US20200193960A1
Автор: JUNG In-Soo, Lee Dong-Chul
Принадлежит:

A system for controlling an engine tone by an artificial intelligence based on a sound quality index of a vehicle may include a sound output device for generating a reinforcing sound to reinforce an engine sound of the vehicle; an engine characteristic measurement sensor for measuring sound source characteristics of the engine sound; an interior noise measurement sensor for detecting interior noise of the vehicle; a signal processing controller that receives signals from the engine characteristic measurement sensor in real time and controls the sound output device such that the engine sound reaches a target tone; and a tone control operation unit connected to the signal processing controller to optimize the sound quality index such that the engine sound reaches the target tone through the artificial intelligence. 1. A system for controlling an engine tone by an artificial intelligence based on a sound quality index of a vehicle , comprising:a sound output device for generating a reinforcing sound to reinforce an engine sound of the vehicle;an engine characteristic measurement sensor for measuring sound source characteristics of the engine sound;an interior noise measurement sensor for detecting interior noise of the vehicle;a signal processing controller that receives signals from the engine characteristic measurement sensor in real time and controls the sound output device such that the engine sound reaches a target tone; anda processor connected to the signal processing controller to optimize the sound quality index such that the engine sound reaches the target tone through the artificial intelligence.2. The system according to claim 1 , wherein the signal processing controller further receives at least one of vehicle driving information emerged through controller area network (CAN) communication or information of the interior noise measured by a microphone.3. The system according to claim 1 , wherein the signal processing controller outputs an engine tone ...

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Номер записи: 91
06-08-2015 дата публикации

Air-fuel ratio detection device

Номер: US20150219590A1
Автор: Shinya Uemura, Yusuke Shimizu
Принадлежит: Denso Corp

An air-fuel ratio detection device includes a resistor, a first voltage application section, a second voltage application section, an amplification section, an A/D conversion section, and an arithmetic section. The first voltage application section applies a direct current voltage to a first end of a series circuit constituted of an air-fuel ratio sensor and the resistor. The amplification section amplifies a voltage across the resistor and outputs an amplified voltage as an output voltage. The A/D conversion section carries out an A/D conversion of the output voltage every time before the second voltage application section switches a voltage applied to a second end of the series circuit between a first voltage and a second voltage. The arithmetic section calculates a sensor current and an impedance of the air-fuel ratio sensor using two consecutive A/D conversion results by the A/D conversion section.

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Номер записи: 92
27-07-2017 дата публикации

METHODS AND SYSTEMS FOR ESTIMATING AN AIR-FUEL RATIO WITH A VARIABLE VOLTAGE OXYGEN SENSOR

Номер: US20170211495A1
Автор: Alobiedat Lyth, Hakeem Mohannad, Makled Daniel A., McQuillen Michael, Smith Stephen B., Soltis Richard E., Surnilla Gopichandra
Принадлежит:

A method for an engine may comprise, responsive to a first condition comprising a reference voltage of a first exhaust oxygen sensor operating in variable voltage mode increasing above a threshold voltage, determining a change in an output of the first exhaust oxygen sensor corresponding to the increase in the reference voltage, correcting the output of the first oxygen sensor based on the output change, and adjusting engine operation based on the corrected output. In this way, the accuracy of air-fuel estimates based on the exhaust gas sensor can be preserved, and closed loop fuel control of the engine can be maintained even when the exhaust oxygen sensor is operating VVS mode, thereby reducing engine emissions, increasing fuel economy, and increasing vehicle drivability. 1. A method for an engine comprising ,responsive to a first condition comprising a reference voltage of a first exhaust oxygen sensor operating in variable voltage mode increasing above a threshold voltage,determining a change in an output of the first exhaust oxygen sensor corresponding to the increase in the reference voltage,correcting the output of the first exhaust oxygen sensor based on the output change, andadjusting engine operation based on the corrected output.2. The method of claim 1 , wherein adjusting engine operation based on the corrected output comprises determining an air-fuel ratio based on the corrected output and adjusting engine operation based on the air-fuel ratio.3. The method of claim 2 , further comprising claim 2 , responsive to the increase in the reference voltage claim 2 , correcting the output of the first exhaust oxygen sensor based on the output of a second exhaust oxygen sensor.4. The method of claim 3 , wherein the first condition further comprises a pumping current of the first exhaust oxygen sensor increasing above a threshold current.5. The method of claim 4 , further comprising during operation of the first exhaust oxygen sensor in variable voltage mode claim ...

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Номер записи: 93
02-08-2018 дата публикации

FIRING FRACTION MANAGEMENT IN SKIP FIRE ENGINE CONTROL

Номер: US20180216541A1
Автор: PIRJABERI Mohammad R., SERRANO Louis J., TRIPATHI Adya S.
Принадлежит:

In various described embodiments skip fire control is used to deliver a desired engine output. A controller determines a skip fire firing fraction and (as appropriate) associated engine settings that are suitable for delivering a requested output. In one aspect, the skip fire controller is arranged to select a base firing fraction that has a repeating firing cycle length that will repeat at least a designated number of times per second at the current engine speed. Such an arrangement can be helpful in reducing the occurrence of undesirable vibrations. 1. A skip fire engine controller comprising:a firing fraction determining unit arranged to determine and output a commanded firing fraction;a filter arranged to receive the commanded firing fraction and output an operational firing fraction, the filter being arranged to spread changes in the commanded firing fraction over multiple firing opportunities;a firing controller arranged to direct firings in a skip fire manner that delivers the operational firing fraction; anda filter bypass that causes the filter to be bypassed such that the commanded firing fraction is passed directly to the firing controller as the operational firing fraction in response to at least one predetermined type of circumstances.2. A skip fire engine controller as recited in wherein the firing controller is arranged to track a portion of a firing that has been requested but not yet directed by the firing controller to thereby help manage transitions between different operational firing fractions.3. A skip fire engine controller as recited in wherein the firing fraction determining unit is arranged to select the commanded firing fraction from a set of available firing fractions.4. A skip fire engine controller as recited in wherein the firing controller is arranged to make firing decisions on a firing opportunity by firing opportunity basis utilizing an accumulator claim 1 , wherein the accumulator serves to help manage transitions between ...

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Номер записи: 94
09-08-2018 дата публикации

METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Номер: US20180223747A1
Автор: Eser Gerhard, ZHANG Hong
Принадлежит: Continental Automotive GmbH

A method for operating an internal combustion engine is presented in which a noise characteristic value, which is representative of a measurement of a noise of the measurement signal of a respective exhaust gas probe, is determined as a function of a profile of the measurement signal of the respective exhaust gas probe. A pressure characteristic value, which is assigned to a respective cylinder, is determined as a function of a profile of a measurement signal of a crankshaft angle sensor and a profile of a pressure measurement signal of a cylinder pressure sensor. Respective actuation signals for actuating respective injection valves are adapted as a function of the pressure characteristic value and the noise characteristic value assigned to the respective cylinder, for the purpose of approximating an air/fuel ratio in the individual cylinders. 1. A method for operating an internal combustion engine , comprising:providing a common exhaust gas probe which is arranged in or upstream of an exhaust gas catalytic converter in an exhaust gas tract associated with the internal combustion engine, the common gas probe making available a measurement signal,{'b': 1', '2', '3', '4, 'providing a plurality of cylinders (Z, Z, Z, Z), which are each assigned an injection valve, and which are each assigned to the common exhaust gas probe,'}providing a crankshaft angle sensor whose measurement signal is representative of a profile of a crankshaft angle of a crankshaft of the internal combustion engine, andproviding at least one cylinder pressure sensor whose pressure measurement signal is representative of a profile of a cylinder pressure in a combustion chamber of the internal combustion engine,determining a noise characteristic value, which is representative of a measurement of a noise of the measurement signal of the exhaust gas probe, as a function of a profile of the measurement signal of the exhaust gas probe,determining, for at least one cylinder, a pressure characteristic ...

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Номер записи: 95
09-08-2018 дата публикации

Method and system for initiating regeneration of diesel particulate filters

Номер: US20180223755A1
Автор: Doss Daniel L., Hoevenaar Robert J., Kotenko Thomas L., Morris Dan O., Shock David P.
Принадлежит:

A method and system for initiating regeneration of a diesel particulate filter (DPF) within a diesel engine system comprising the DPF, a data link connector (DLC), and an electronic control unit (ECU) such as an engine control unit includes an engine communication interface (ECI) device and a communication device that request and transmit DPF inhibit parameters that indicate whether initiation of regeneration of the DPF can be performed. The ECI device can comprise two connectors that are connectable to different types of DLC. The communication device can comprise a smart-phone. The ECI device can determine which DPF inhibit parameter are to be requested from the ECU and which vehicle communication protocol is required to communicate with the ECU. The communication device can receive the DPF inhibit parameters, determine whether initiation of regeneration of the DPF can be performed, and transmit a communication to request initiation of regeneration of the DPF. 1. A method for initiating regeneration of a diesel particulate filter (DPF) within a diesel engine system that comprises the DPF , a first data link connector (DLC) , and an electronic control unit (ECU) , the method comprising:receiving, at a radio receiver of an engine communication interface (ECI) device, a first radio signal comprising a request for at least one DPF regeneration inhibit parameter, wherein the ECI device comprises a first connector connectable to the first DLC, but not to a second DLC different than the first DLC;determining, by at least one processor of the ECI device, at least one message for requesting the at least one DPF regeneration inhibit parameter from the ECU;transmitting, by a first transmitter of the ECI device to the first DLC, the at least one message for requesting the at least one DPF regeneration inhibit parameter from the ECU;receiving, by a second receiver of the ECI device, the at least one DPF regeneration inhibit parameter from the ECU, wherein the received at least ...

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Номер записи: 96
09-08-2018 дата публикации

METHODS AND SYSTEMS FOR ENGINE FUEL AND TORQUE CONTROL

Номер: US20180223760A1
Автор: Ali Imtiaz, Brown Martin, Gogna Naginder, Hilditch James Alfred, McQuillen Michael, Pursifull Ross Dykstra, Surnilla Gopichandra
Принадлежит:

Methods and systems are provided for accurately estimating intake aircharge based on the output of an intake oxygen sensor while flowing EGR, purge, or PCV hydrocarbons to the engine. The unadjusted aircharge estimate is used for engine fuel control while the hydrocarbon adjusted aircharge estimate is used for engine torque control. A controller is configured to sample the oxygen sensor at even increments in a time domain, stamp the sampled data in a crank angle domain, store the sampled data in a buffer, and then select one or more data samples corresponding to a last firing period from the buffer for estimating the intake aircharge. 1. A method for an engine , comprising: adjusting engine fueling responsive to an output of an intake oxygen sensor independent of the diluents; and', 'learning an adaptive fuel correction., 'while flowing one or more diluents into an engine,'}2. The method of claim 1 , wherein the one or more diluents include exhaust gas recirculation (EGR) claim 1 , purge fuel vapors claim 1 , and crankcase ventilation fuel vapors claim 1 , and wherein the intake oxygen sensor is coupled to an intake passage of the engine.3. The method of claim 1 , wherein adjusting the engine fueling independent of the diluents includes adjusting engine fueling based on an unadjusted output of the intake oxygen sensor.4. The method of claim 1 , wherein adjusting engine fueling includes estimating a cylinder aircharge based on an output of the intake oxygen sensor claim 1 , without correcting the output for the diluents claim 1 , and estimating engine fueling based on the estimated cylinder aircharge.5. The method of claim 1 , wherein adjusting engine fueling and learning the adaptive fuel correction includes feed-forward adjusting an engine fueling amount based on the output of the intake oxygen sensor and feedback adjusting the engine fueling amount based on an air-fuel ratio estimated by an exhaust gas sensor.6. The method of claim 5 , further comprising adjusting ...

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Номер записи: 97
18-07-2019 дата публикации

IDENTIFICATION AND SUPPRESSION SYSTEM OF A TORQUE DELIVERY IMBALANCE OF AN INTERNAL COMBUSTION ENGINE EQUIPPED WITH TWO OR MORE CYLINDERS

Номер: US20190218982A1
Автор: Genova Daniele, Sartoni Giovanni, Tombari Lorenzo
Принадлежит:

Method for the identification of a torque delivery imbalance of an internal combustion engine equipped with two or more cylinders under constant speed operating conditions of the internal combustion engine comprising an analysis procedure in the frequency domain of a rotation speed signal of said engine so that when an amplitude of a half-order frequency exceeds a predetermined threshold, the cylinder of said two or more cylinders that causes said imbalance is identified by calculating a relative phase. 1. An identification method of a torque delivery imbalance of an internal combustion engine equipped with two or more cylinders , under constant speed operating conditions of the internal combustion engine , comprising in succession the following steps:(i) acquiring a first signal of a rotation speed of a relative drive shaft (CS) by means of a speed sensor;(ii) converting said first signal into a second signal in the frequency domain, (iia) calculating a first amplitude (A=Re(f/2)) of a predetermined frequency (f/2) equal to half a frequency (f) corresponding to said averagely constant speed;(iii) comparing said first amplitude (A) with a predetermined threshold (Th) and if said first amplitude exceeds said predetermined threshold, then(iv) an imbalance of the internal combustion engine has been identified.2. The method according to claim 1 , further comprising an identification procedure of a first cylinder (i) of said two or more cylinders that causes said imbalance claim 1 , said procedure comprising the following steps:(iib) calculating a first phase (fi(f/2)) relative to a first amplitude (Re(f/2)) with respect to a reference phase (f(0));(v) preliminary dividing a plane into angular sectors in numbers corresponding to a number (N) of said two or more cylinders and numbering said sectors consecutively according to an ignition order of said internal combustion engine starting from a reference phase (0);(vi) identifying said first cylinder (i) that causes said ...

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Номер записи: 98
19-08-2021 дата публикации

METHOD FOR MEASURING A PHYSICAL QUANTITY BY MEANS OF A DIGITAL SENSOR

Номер: US20210254573A1
Автор: DILEON Jérôme, VATAMANU Lucian
Принадлежит:

A method for controlling a motor-vehicle electronic control unit with a view to acquiring the measurement of a physical quantity using a digital sensor connected to the electronic control unit, in which method the sensor sends measurement digital data with a send period and the electronic control unit processes these measurement data with a processing period, the send period being shorter than the processing period. At the end of each processing period, the average value of the measured physical quantity is determined over an interval of N preceding processing periods. 1121215. A method for controlling a motor-vehicle electronic control unit () with a view to acquiring the measurement of a physical quantity using a digital sensor () connected to the electronic control unit () , in which method the sensor () sends measurement digital data (Q) with a send period (Te) and the electronic control unit () processes these measurement data (Q) with a processing period (Tt) , the send period (Te) being shorter than the processing period (Tt) , wherein in this method , at the end of each processing period (Tt) , the average value of the measured physical quantity is determined over an interval () of N preceding processing periods (Tt) , the method comprising:{'b': 6', '1, 'storing, in a buffer memory () of storage capacity equal to N+2 measurement data (Q), a measurement datum assigned to each processing period (Tt), the measurement datum assigned to a processing period being defined as the last measurement datum (Q) received by the electronic control unit () in this processing period;'}{'b': 6', '1, 'with each assigned measurement datum that is stored in the buffer memory (), also storing the age (A) of the assigned measurement datum, the age (A) of a measurement datum (Q) being defined as the duration between the reception of the measurement datum by the electronic control unit () and the end of the corresponding processing period (Tt);'}{'b': '6', 'at the end of each ...

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Номер записи: 99
16-08-2018 дата публикации

Gas detection device

Номер: US20180231492A1
Автор: Keiichiro Aoki
Принадлежит: Toyota Motor Corp

A gas detection device includes a temperature control part configured to control an amount of energization to a heater so that an impedance of an element part matches a target impedance, to thereby control a temperature of the heater. The temperature control part is configured to set a first target impedance as the target impedance while performing application voltage control for air-fuel ratio detection, and set a second target impedance as the target impedance while performing application voltage control for SOx detection.

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Номер записи: 100
24-08-2017 дата публикации

ENGINE CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20170241362A1
Автор: Beerens Christoph
Принадлежит:

An engine control system for an internal combustion engine may include at least one energy harvesting module with at least one energy converter and at least one energy module for transmitting electric energy, and at least one sensor for detecting a physical or chemical measurement quantity on or in an engine component. The engine control system may also include a microcontroller connected to the sensor and the radio module and for processing the measurement quantity, a radio module for a wireless transmission of the measurement quantity to a radio receiver, and an engine control unit connected to the radio receiver and configured to evaluate incoming measurement quantities from the radio module, process the incoming measurement quantities into control signals, and transmit the control signals to the internal combustion engine for protecting the engine component. The energy module may be connected at least to the microcontroller and the radio module. 1. An engine control system for an internal combustion engine , comprising:at least one energy harvesting module with at least one energy converter and at least one energy module for transmitting electric energy;at least one sensor for detecting one of a physical and a chemical measurement quantity one of on and in an engine component of the internal combustion engine;a microcontroller for processing the detected measurement quantity;a radio module for a wireless transmission of the measurement quantity processed by the microcontroller to a radio receiver; andan engine control unit communicatingly connected to the radio receiver, the engine control unit configured to evaluate incoming measurement quantities from the radio module, process the incoming measurement quantities into control signals, and transmit the control signals to the internal combustion engine for protecting the engine component;wherein the microcontroller is communicatingly connected to the sensor and the radio module, and the energy module.2. The ...

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Номер записи: 101